NETSCAPE COMMUNICATIONS CORP
S-3, 1996-10-30
PREPACKAGED SOFTWARE
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<PAGE>
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 30, 1996
                                                      REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                              -------------------
                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                              -------------------
                      NETSCAPE COMMUNICATIONS CORPORATION
             (Exact name of Registrant as specified in its charter)
 
               DELAWARE                                94-3200270
    (State or other jurisdiction of                 (I.R.S. Employer
    incorporation or organization)               Identification Number)
 
                           501 EAST MIDDLEFIELD ROAD
                            MOUNTAIN VIEW, CA 94043
                                 (415) 254-1900
  (Address, including zip code, and telephone number, including area code, of
                   Registrant's principal executive offices)
                             ---------------------
 
                                ROBERTA R. KATZ
              SENIOR VICE PRESIDENT, GENERAL COUNSEL AND SECRETARY
                      NETSCAPE COMMUNICATIONS CORPORATION
                           501 EAST MIDDLEFIELD ROAD
                            MOUNTAIN VIEW, CA 94043
                                 (415) 254-1900
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                             ---------------------
 
                                   COPIES TO:
 
         LARRY W. SONSINI, ESQ.                  GREGORY M. GALLO, ESQ.
       JAMES N. STRAWBRIDGE, ESQ.               THOMAS W. FURLONG, ESQ.
         JON C. GONZALES, ESQ.                   SCOTT M. STANTON, ESQ.
    WILSON SONSINI GOODRICH & ROSATI          GRAY CARY WARE & FREIDENRICH
        PROFESSIONAL CORPORATION               A PROFESSIONAL CORPORATION
           650 PAGE MILL ROAD                     400 HAMILTON AVENUE
          PALO ALTO, CA 94304                     PALO ALTO, CA 94301
             (415) 493-9300                          (415) 328-6561
 
                             ---------------------
 
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
As soon as practicable after the effective date of this Registration Statement.
                             ---------------------
 
    If  the  only securities  being registered  on this  form are  being offered
pursuant to dividend or interest reinvestment plans, please check the  following
box.
 
    If  any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to  Rule 415 under the Securities Act  of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. / /
 
    If  this form  is filed  to register  additional securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration statement  number  of  the  earlier
effective registration statement for the same offering. / /
- ----------------
 
    If  this form  is a post-effective  amendment filed pursuant  to Rule 462(c)
under the Securities Act,  check the following box  and list the Securities  Act
registration  statement number  of the earlier  effective registration statement
for the same offering. / /
- ----------------
 
    If delivery of the prospectus is expected  to be made pursuant to Rule  434,
please check the following box. / /
                             ---------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
                                                                         PROPOSED MAXIMUM    PROPOSED MAXIMUM
              TITLE OF EACH CLASS OF                    AMOUNT TO         OFFERING PRICE        AGGREGATE           AMOUNT OF
           SECURITIES TO BE REGISTERED               BE REGISTERED(1)      PER SHARE(2)     OFFERING PRICE(2)    REGISTRATION FEE
<S>                                                 <C>                 <C>                 <C>                 <C>
Common Stock, $.0001 par value....................   5,750,000 shares         $47.00           $270,250,000          $81,894
</TABLE>
 
(1)  Includes 750,000  shares of  Common Stock  which the  Underwriters have the
    option to purchase to cover over-allotments, if any.
 
(2) Estimated solely for the purpose of computing the amount of the registration
    fee based on the average of the high and low prices for the Common Stock  as
    reported  by the  Nasdaq National Market  on October 25,  1996 in accordance
    with Rule 457(c) of the Securities Act of 1933.
                             ---------------------
 
    THE REGISTRANT HEREBY  AMENDS THIS  REGISTRATION STATEMENT ON  SUCH DATE  OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE  A  FURTHER  AMENDMENT  WHICH SPECIFICALLY  STATES  THAT  THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE  IN ACCORDANCE WITH SECTION 8(A)  OF
THE  SECURITIES ACT  OF 1933  OR UNTIL  THE REGISTRATION  STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION  8(A),
MAY DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                                EXPLANATORY NOTE
 
    This  Registration Statement contains two forms of Prospectus: (i) one to be
used in connection with an offering in  the United States and Canada (the  "U.S.
Prospectus")  and (ii) the other to be used in a concurrent offering outside the
United States and Canada (the "International Prospectus"). The two  prospectuses
are identical in all material respects except for the front cover page. The form
of  U.S. Prospectus is included herein and  is followed by the alternate page to
be  used  in  the   International  Prospectus.  The   alternate  page  for   the
International   Prospectus  included  herein  is  labeled  "Alternate  Page  for
International Prospectus." Final forms of each Prospectus will be filed with the
Securities and Exchange Commission under Rule 424(b).
<PAGE>
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR  TO THE TIME THE REGISTRATION STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE AN  OFFER  TO  SELL  OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN  ANY STATE IN WHICH SUCH OFFER,  SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
PROSPECTUS (SUBJECT TO COMPLETION)
ISSUED OCTOBER 30, 1996
                                5,000,000 SHARES
 
                                     [LOGO]
 
                                  COMMON STOCK
                               -----------------
 OF THE 5,000,000 SHARES  OF COMMON STOCK BEING  OFFERED, 4,250,000 SHARES  ARE
 BEING  OFFERED  INITIALLY  IN  THE  UNITED STATES  AND  CANADA  BY  THE U.S.
   UNDERWRITERS AND 750,000 SHARES ARE BEING OFFERED INITIALLY OUTSIDE OF THE
   UNITED  STATES  AND  CANADA  BY  THE  INTERNATIONAL  UNDERWRITERS.   SEE
     "UNDERWRITERS." OF THE 5,000,000 SHARES OF COMMON STOCK BEING OFFERED,
     2,000,000  SHARES ARE BEING  SOLD BY THE  COMPANY AND 3,000,000 SHARES
     ARE BEING  SOLD  BY THE  SELLING  STOCKHOLDERS. SEE  "PRINCIPAL  AND
       SELLING  STOCKHOLDERS." THE  COMPANY WILL  NOT RECEIVE  ANY OF THE
       PROCEEDS FROM THE SALE OF SHARES BY THE SELLING STOCKHOLDERS. THE
        COMPANY'S COMMON STOCK IS LISTED ON THE NASDAQ NATIONAL  MARKET
         UNDER  THE SYMBOL  "NSCP." ON  OCTOBER 25,  1996, THE REPORTED
         LAST SALE PRICE OF THE COMMON STOCK ON    THE NASDAQ NATIONAL
          MARKET WAS $46  1/4 PER  SHARE. SEE "PRICE  RANGE OF  COMMON
                                    STOCK."
                            ------------------------
 
        THIS OFFERING INVOLVES A HIGH DEGREE OF RISK. SEE "RISK FACTORS"
                          COMMENCING ON PAGE 6 HEREOF.
                              -------------------
THESE  SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
    SECURITIES  AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
      PASSED UPON  THE  ACCURACY  OR ADEQUACY  OF  THIS  PROSPECTUS.  ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                              -------------------
 
                              PRICE $      A SHARE
                              -------------------
 
<TABLE>
<CAPTION>
                                                     UNDERWRITING                               PROCEEDS TO
                                  PRICE TO           DISCOUNTS AND         PROCEEDS TO            SELLING
                                   PUBLIC           COMMISSIONS(1)         COMPANY(2)          STOCKHOLDERS
                             -------------------  -------------------  -------------------  -------------------
<S>                          <C>                  <C>                  <C>                  <C>
PER SHARE..................           $                    $                    $                    $
TOTAL(3)...................           $                    $                    $                    $
</TABLE>
 
- ------------
(1)  THE  COMPANY AND  THE  SELLING STOCKHOLDERS  HAVE  AGREED TO  INDEMNIFY THE
    UNDERWRITERS AGAINST CERTAIN  LIABILITIES, INCLUDING  LIABILITIES UNDER  THE
    SECURITIES ACT OF 1933, AS AMENDED. SEE "UNDERWRITERS."
 
(2) BEFORE DEDUCTING EXPENSES PAYABLE BY THE COMPANY ESTIMATED AT $900,000.
 
(3)  THE COMPANY  HAS GRANTED  TO THE  U.S. UNDERWRITERS  AN OPTION, EXERCISABLE
    WITHIN 30 DAYS OF THE DATE HEREOF, TO PURCHASE UP TO AN AGGREGATE OF 750,000
    ADDITIONAL SHARES AT  THE PRICE  TO PUBLIC LESS  UNDERWRITING DISCOUNTS  AND
    COMMISSIONS FOR THE PURPOSE OF COVERING OVER-ALLOTMENTS, IF ANY. IF THE U.S.
    UNDERWRITERS  EXERCISE  SUCH  OPTION IN  FULL,  THE TOTAL  PRICE  TO PUBLIC,
    UNDERWRITING DISCOUNTS AND COMMISSIONS AND  PROCEEDS TO THE COMPANY WILL  BE
    $          , $         AND $          , RESPECTIVELY. SEE "UNDERWRITERS."
                            ------------------------
 
    THE  SHARES ARE OFFERED, SUBJECT TO PRIOR  SALE, WHEN, AS AND IF ACCEPTED BY
THE UNDERWRITERS NAMED HEREIN AND SUBJECT  TO APPROVAL OF CERTAIN LEGAL  MATTERS
BY  GRAY CARY  WARE & FREIDENRICH,  A PROFESSIONAL CORPORATION,  COUNSEL FOR THE
UNDERWRITERS. IT IS  EXPECTED THAT DELIVERY  OF THE  SHARES WILL BE  MADE ON  OR
ABOUT             , 1996 AT THE OFFICE OF MORGAN STANLEY & CO. INCORPORATED, NEW
YORK, N.Y., AGAINST PAYMENT THEREFOR IN IMMEDIATELY AVAILABLE FUNDS.
                              -------------------
 
MORGAN STANLEY & CO.
       INCORPORATED
 
                    DEUTSCHE MORGAN GRENFELL
 
                             GOLDMAN, SACHS & CO.
 
                                                               HAMBRECHT & QUIST
 
            , 1996
<PAGE>
Information   contained  herein  is  subject   to  completion  or  amendment.  A
registration statement  relating to  these securities  has been  filed with  the
Securities  and Exchange  Commission. These securities  may not be  sold nor may
offers to buy be accepted prior  to the time the registration statement  becomes
effective.  This  prospectus  shall  not  constitute an  offer  to  sell  or the
solicitation of an offer to buy nor shall there be any sale of these  securities
in  any State in which such offer,  solicitation or sale would be unlawful prior
to registration or qualification under the securities laws of any such State.
<PAGE>
PROSPECTUS (SUBJECT TO COMPLETION)
ISSUED OCTOBER 30, 1996
                                5,000,000 SHARES
 
                                     [LOGO]
 
                                  COMMON STOCK
                               -----------------
 OF THE 5,000,000  SHARES OF  COMMON STOCK  BEING OFFERED,  750,000 SHARES  ARE
 BEING  OFFERED  INITIALLY OUTSIDE  OF THE  UNITED STATES  AND CANADA  BY THE
   INTERNATIONAL  UNDERWRITERS  AND  4,250,000   SHARES  ARE  BEING   OFFERED
   INITIALLY   INSIDE  OF  THE  UNITED  STATES   AND  CANADA  BY  THE  U.S.
     UNDERWRITERS. SEE "UNDERWRITERS."  OF THE 5,000,000  SHARES OF  COMMON
     STOCK  BEING OFFERED, 2,000,000  SHARES ARE BEING  SOLD BY THE COMPANY
     AND 3,000,000 SHARES ARE BEING SOLD BY THE SELLING STOCKHOLDERS. SEE
       "PRINCIPAL AND SELLING STOCKHOLDERS." THE COMPANY WILL NOT RECEIVE
       ANY OF  THE PROCEEDS  FROM  THE SALE  OF  SHARES BY  THE  SELLING
        STOCKHOLDERS. THE COMPANY'S COMMON STOCK IS LISTED ON THE NASDAQ
        NATIONAL  MARKET UNDER THE SYMBOL  "NSCP." ON OCTOBER 25, 1996,
         THE REPORTED LAST SALE PRICE  OF THE COMMON STOCK  ON     THE
          NASDAQ  NATIONAL MARKET  WAS $46  1/4 PER  SHARE. SEE "PRICE
                            RANGE OF COMMON STOCK."
                            ------------------------
 
        THIS OFFERING INVOLVES A HIGH DEGREE OF RISK. SEE "RISK FACTORS"
                          COMMENCING ON PAGE 5 HEREOF.
                              -------------------
THESE SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES  AND
  EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS THE
    SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES  COMMISSION
      PASSED  UPON  THE  ACCURACY  OR ADEQUACY  OF  THIS  PROSPECTUS. ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                              -------------------
 
                              PRICE $      A SHARE
                              -------------------
 
<TABLE>
<CAPTION>
                                                     UNDERWRITING                               PROCEEDS TO
                                  PRICE TO           DISCOUNTS AND         PROCEEDS TO            SELLING
                                   PUBLIC           COMMISSIONS(1)         COMPANY(2)          STOCKHOLDERS
                             -------------------  -------------------  -------------------  -------------------
<S>                          <C>                  <C>                  <C>                  <C>
PER SHARE..................           $                    $                    $                    $
TOTAL(3)...................           $                    $                    $                    $
</TABLE>
 
- ------------
(1) THE  COMPANY AND  THE  SELLING STOCKHOLDERS  HAVE  AGREED TO  INDEMNIFY  THE
    UNDERWRITERS  AGAINST CERTAIN  LIABILITIES, INCLUDING  LIABILITIES UNDER THE
    SECURITIES ACT OF 1933, AS AMENDED. SEE "UNDERWRITERS."
 
(2) BEFORE DEDUCTING EXPENSES PAYABLE BY THE COMPANY ESTIMATED AT $900,000.
 
(3) THE COMPANY  HAS GRANTED  TO THE  U.S. UNDERWRITERS  AN OPTION,  EXERCISABLE
    WITHIN 30 DAYS OF THE DATE HEREOF, TO PURCHASE UP TO AN AGGREGATE OF 750,000
    ADDITIONAL  SHARES AT  THE PRICE TO  PUBLIC LESS  UNDERWRITING DISCOUNTS AND
    COMMISSIONS FOR THE PURPOSE OF COVERING OVER-ALLOTMENTS, IF ANY. IF THE U.S.
    UNDERWRITERS EXERCISE  SUCH  OPTION IN  FULL,  THE TOTAL  PRICE  TO  PUBLIC,
    UNDERWRITING  DISCOUNTS  AND COMMISSIONS  AND  PROCEEDS TO  COMPANY  WILL BE
    $          , $         AND $          , RESPECTIVELY. SEE "UNDERWRITERS."
                            ------------------------
 
    THE SHARES ARE OFFERED, SUBJECT TO PRIOR  SALE, WHEN, AS AND IF ACCEPTED  BY
THE  UNDERWRITERS NAMED HEREIN AND SUBJECT  TO APPROVAL OF CERTAIN LEGAL MATTERS
BY GRAY CARY  WARE & FREIDENRICH,  A PROFESSIONAL CORPORATION,  COUNSEL FOR  THE
UNDERWRITERS.  IT IS  EXPECTED THAT DELIVERY  OF THE  SHARES WILL BE  MADE ON OR
ABOUT             , 1996 AT THE OFFICE OF MORGAN STANLEY & CO. INCORPORATED, NEW
YORK, N.Y., AGAINST PAYMENT THEREFOR IN IMMEDIATELY AVAILABLE FUNDS.
                              -------------------
 
MORGAN STANLEY & CO.
       INTERNATIONAL
 
                    DEUTSCHE MORGAN GRENFELL
 
                         GOLDMAN SACHS INTERNATIONAL
 
                                                               HAMBRECHT & QUIST
 
            , 1996
<PAGE>
    NO  PERSON IS AUTHORIZED IN CONNECTION WITH ANY OFFERING MADE HEREBY TO GIVE
ANY INFORMATION  OR  TO MAKE  ANY  REPRESENTATION  OTHER THAN  AS  CONTAINED  OR
INCORPORATED  BY  REFERENCE  IN THIS  PROSPECTUS,  AND  IF GIVEN  OR  MADE, SUCH
INFORMATION MUST NOT BE  RELIED UPON AS HAVING  BEEN AUTHORIZED BY THE  COMPANY,
ANY  SELLING STOCKHOLDER OR ANY UNDERWRITER. THIS PROSPECTUS DOES NOT CONSTITUTE
AN OFFER TO  SELL OR A  SOLICITATION OF  AN OFFER TO  BUY BY ANY  PERSON IN  ANY
JURISDICTION IN WHICH IT IS UNLAWFUL FOR SUCH PERSON TO MAKE SUCH AN OFFERING OR
SOLICITATION.  NEITHER THE DELIVERY OF THIS PROSPECTUS  AT ANY TIME NOR ANY SALE
MADE HEREUNDER SHALL UNDER ANY CIRCUMSTANCE IMPLY THAT THE INFORMATION HEREIN IS
CORRECT AS OF ANY DATE SUBSEQUENT TO THE DATE HEREOF.
                             ---------------------
 
    NO ACTION HAS BEEN OR WILL BE TAKEN IN ANY JURISDICTION BY THE COMPANY,  ANY
SELLING  STOCKHOLDER OR BY AN UNDERWRITER THAT WOULD PERMIT A PUBLIC OFFERING OF
THE COMMON  STOCK  OR POSSESSION  OR  DISTRIBUTION  OF THIS  PROSPECTUS  IN  ANY
JURISDICTION WHERE ACTION FOR THAT PURPOSE IS REQUIRED, OTHER THAN IN THE UNITED
STATES.  PERSONS INTO WHOSE POSSESSION THIS PROSPECTUS COMES ARE REQUIRED BY THE
COMPANY AND THE  UNDERWRITERS TO  INFORM THEMSELVES  ABOUT, AND  TO OBSERVE  ANY
RESTRICTIONS  AS TO, THE  OFFERING OF THE  COMMON STOCK AND  THE DISTRIBUTION OF
THIS PROSPECTUS.
                             ---------------------
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                      PAGE
                                                                                                                      -----
<S>                                                                                                                <C>
Incorporation of Certain Documents by Reference..................................................................           2
Prospectus Summary...............................................................................................           3
The Company......................................................................................................           4
Risk Factors.....................................................................................................           5
Use of Proceeds..................................................................................................          20
Price Range of Common Stock......................................................................................          20
Dividend Policy..................................................................................................          20
Capitalization...................................................................................................          21
Dilution.........................................................................................................          22
Selected Supplemental Consolidated Financial Data................................................................          23
Business.........................................................................................................          24
Management.......................................................................................................          31
Principal and Selling Stockholders...............................................................................          34
Certain United States Federal Tax Considerations for Non-U.S. Holders of Common Stock............................          36
Underwriters.....................................................................................................          38
Legal Matters....................................................................................................          41
Experts..........................................................................................................          41
Available Information............................................................................................          41
</TABLE>
 
                              -------------------
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    The following  documents  filed  by  the Company  with  the  Securities  and
Exchange  Commission (the "Commission") pursuant  to the Securities Exchange Act
of 1934, as amended (the "Exchange  Act") are incorporated herein by  reference:
(1)  the Company's Annual  Report on Form  10-K for the  year ended December 31,
1995, as amended by the Company's Annual  Report on Form 10-K/A Amendment No.  1
filed  on May  7, 1996  and as amended  by the  Company's Annual  Report on Form
10-K/A Amendment No. 2  filed on October 30,  1996; (2) the Company's  Quarterly
Report  on Form  10-Q for the  quarter ended  March 31, 1996;  (3) the Company's
Current Report on Form  8-K dated April  25, 1996, as  amended by the  Company's
Current  Report on Form 8-K/A filed on July 8, 1996; (4) the Company's Quarterly
Report on Form  10-Q for  the quarter  ended June  30, 1996;  (5) the  Company's
Quarterly  Report on Form 10-Q for the quarter ended September 30, 1996; and (6)
the description  of  the  Company's  Common Stock  contained  in  the  Company's
Registration  Statement on Form  8-A filed on  June 23, 1995,  as amended by the
Company's Registration Statement on Form 8-A/A filed on August 4, 1995.
 
    All reports and  other documents filed  by the Company  pursuant to  Section
13(a),  13(c), 14 or  15(d) of the Exchange  Act subsequent to  the date of this
Prospectus and prior  to the  termination of the  offering of  the Common  Stock
hereunder  shall be deemed  to be incorporated  by reference herein  and to be a
part hereof from the date of filing  of such reports and documents. The  Company
will  provide  without  charge,  to  each  person  to  whom  this  Prospectus is
delivered, a copy of any or all of such documents (exclusive of exhibits  unless
such  exhibits are specifically incorporated  by reference herein), upon written
or oral request to Investor Relations, Netscape Communications Corporation,  501
East   Middlefield  Road,  Mountain  View,  California  94043,  telephone  (415)
937-9360.
 
    Any  statement  contained  in  a  document  incorporated  or  deemed  to  be
incorporated  by reference herein  shall be deemed to  be modified or superseded
for purposes of this Prospectus to the extent that a statement contained  herein
or  in any  other subsequently filed  document that also  is or is  deemed to be
incorporated by  reference herein  modifies or  supersedes such  statement.  Any
statement  so modified or superseded shall not  be deemed, except as so modified
or superseded, to constitute a part of this Prospectus.
                             ---------------------
 
    Netscape Navigator-Registered Trademark-  is a registered  trademark of  the
Company.  AppFoundry-TM-, LiveWire-TM-,  Netscape ONE-TM-  and SuiteSpot-TM- are
trademarks of the Company.  All other trademarks or  trade names referred to  in
this Prospectus are the property of their respective owners.
                             ---------------------
 
    IN  CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK OF
THE COMPANY AT  A LEVEL ABOVE  THAT WHICH  MIGHT OTHERWISE PREVAIL  IN THE  OPEN
MARKET. SUCH STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
    IN  CONNECTION WITH  THIS OFFERING,  CERTAIN UNDERWRITERS  AND OTHER SELLING
GROUP MEMBERS (IF  ANY) OR  THEIR RESPECTIVE  AFFILIATES MAY  ENGAGE IN  PASSIVE
MARKET  MAKING TRANSACTIONS  IN THE  COMMON STOCK OF  THE COMPANY  ON THE NASDAQ
NATIONAL MARKET  IN ACCORDANCE  WITH RULE  10B-6A UNDER  THE EXCHANGE  ACT.  SEE
"UNDERWRITERS."
 
                                       2
<PAGE>
                               PROSPECTUS SUMMARY
 
    THE  FOLLOWING SUMMARY  IS QUALIFIED  IN ITS  ENTIRETY BY  THE MORE DETAILED
INFORMATION  AND  THE  CONSOLIDATED  FINANCIAL  STATEMENTS  AND  NOTES   THERETO
APPEARING ELSEWHERE OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS.
 
                                  THE COMPANY
 
    Netscape  Communications  Corporation  ("Netscape" or  the  "Company")  is a
leading provider  of  open software  for  linking people  and  information  over
private   TCP/IP-based  enterprise  networks  ("intranets")  and  the  Internet.
Netscape develops, markets and supports a  broad suite of enterprise server  and
client  software,  development tools  and  commercial applications  to  create a
single shared communications platform  for network-based applications.  Netscape
software  is based on industry standard  protocols and therefore can be deployed
across a variety of computer operating systems, hardware platforms and databases
and can  be interconnected  with traditional  client/server applications.  Using
Netscape  solutions, organizations can extend their internal information systems
and applications  to geographically  dispersed facilities  as well  as to  third
party partners and customers. In addition, Netscape's products allow individuals
and  organizations to access information and  to execute transactions across the
Internet, such as the buying  and selling of information, software,  merchandise
and publications.
 
    Netscape  released its first product, Navigator 1.0, in December 1994, which
offered an easy to use graphical user interface for browsing the World Wide  Web
(the  "Web"). Since  that time, the  Company has become  increasingly focused on
offering user and network services  for use in intranet applications,  including
features with e-mail and graphics. The Company currently offers a broad suite of
software  products and tools, targeted primarily at corporate intranets, for use
in a variety  of information sharing,  network management and  commerce-enabling
applications.  92 of  the Fortune  100 companies  use Netscape  for intranets or
Internet solutions.
 
                                  THE OFFERING
 
<TABLE>
<S>                                                        <C>
U.S. offering............................................  4,250,000 shares
International offering...................................  750,000 shares
  Total..................................................  5,000,000 shares (including 2,000,000 shares sold by the
                                                            Company and 3,000,000 shares sold by the Selling
                                                           Stockholders)
Common Stock to be outstanding after the offering........  86,535,395 shares (1)
Use of proceeds..........................................  For general corporate purposes, including working capital
                                                           and capital expenditures
Nasdaq National Market symbol............................  NSCP
</TABLE>
 
            SUPPLEMENTAL SUMMARY CONSOLIDATED FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
<TABLE>
<CAPTION>
                                                                                     QUARTER ENDED
                                                       --------------------------------------------------------------------------
                                                        MARCH 31,   JUNE 30,    SEPT. 30,    DEC. 31,     MARCH 31,    JUNE 30,
                                                         1995(2)     1995(2)     1995(2)      1995(2)      1996(3)      1996(3)
                                                       -----------  ---------  -----------  -----------  -----------  -----------
<S>                                                    <C>          <C>        <C>          <C>          <C>          <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
Total revenues.......................................   $   6,445   $  14,072   $  23,308    $  41,562    $  56,121    $  75,006
Gross profit.........................................       5,814      12,753      20,289       34,824       47,627       62,978
Merger related charges...............................      --          --          --            2,033       --            6,100
Total operating expenses.............................      10,412      15,941      21,470       36,566       45,137       62,450
Operating income (loss)..............................      (4,598)     (3,188)     (1,181)      (1,742)       2,490          528
Net income (loss)....................................      (4,507)     (2,792)        175          511        3,589          906
Net income (loss) per share..........................   $   (0.07)  $   (0.04)  $    0.00    $    0.01    $    0.04    $    0.01
 
<CAPTION>
 
                                                       SEPT. 30,
                                                        1996(3)
                                                       ---------
<S>                                                    <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
Total revenues.......................................  $ 100,016
Gross profit.........................................     85,322
Merger related charges...............................     --
Total operating expenses.............................     76,362
Operating income (loss)..............................      8,960
Net income (loss)....................................      7,657
Net income (loss) per share..........................  $    0.09
</TABLE>
 
<TABLE>
<CAPTION>
                                                            SEPTEMBER 30, 1996
                                                         ------------------------
                                                                         AS
                                                         ACTUAL(3) ADJUSTED(3)(4)
                                                         --------  --------------
<S>                                                      <C>       <C>
                                                              (IN THOUSANDS)
CONSOLIDATED BALANCE SHEET DATA:
Working capital........................................  $70,571      $158,286
Total assets...........................................  331,748      419,463
Deferred revenues......................................   75,126       75,126
Long-term obligations, net of current portion..........      659          659
Stockholders' equity...................................  199,004      286,719
</TABLE>
 
- ------------
(1) Based on shares of Common Stock outstanding at September 30, 1996. Excludes,
    as of September  30, 1996, (i)  an aggregate of  8,301,650 shares of  Common
    Stock  subject to outstanding options under the Company's stock option plans
    at a  weighted average  exercise price  of $22.83  per share  and  3,257,663
    shares  reserved for future grants of  options thereunder and (ii) 1,723,494
    shares of  Common  Stock reserved  but  unissued under  the  Company's  1995
    Employee  Stock Purchase Plan. Assumes no exercise of the U.S. Underwriters'
    over-allotment option. See "Capitalization" and "Underwriters."
 
(2) Reflects the business  combinations of Collabra  Software, Inc. and  InSoft,
    Inc.  which  have been  accounted for  as  poolings of  interests. Financial
    information has not been restated for the operations of Netcode  Corporation
    and Paper Software, Inc. due to immateriality.
 
(3)  Reflects the acquisitions of Collabra Software, Inc., InSoft, Inc., Netcode
    Corporation and  Paper  Software, Inc.  which  have been  accounted  for  as
    poolings of interests.
 
(4)  Adjusted  to  reflect  the sale  of  the  shares of  Common  Stock  and the
    application of the estimated net proceeds therefrom. Assumes no exercise  of
    the  U.S.  Underwriters'  over-allotment  option.  See  "Use  of  Proceeds,"
    "Capitalization" and "Underwriters."
 
                                       3
<PAGE>
                                  THE COMPANY
 
    Netscape  Communications  Corporation  ("Netscape" or  the  "Company")  is a
leading provider  of  open software  for  linking people  and  information  over
private   TCP/IP-based  enterprise  networks  ("intranets")  and  the  Internet.
Netscape develops, markets and supports a  broad suite of enterprise server  and
client  software,  development tools  and  commercial applications  to  create a
single shared communications platform  for network-based applications.  Netscape
software  is based on industry standard  protocols and therefore can be deployed
across a variety of computer operating systems, hardware platforms and databases
and can  be interconnected  with traditional  client/server applications.  Using
Netscape  solutions, organizations can extend their internal information systems
and applications  to geographically  dispersed facilities  as well  as to  third
party partners and customers. In addition, Netscape's products allow individuals
and  organizations to access information and  to execute transactions across the
Internet such as the  buying and selling  of information, software,  merchandise
and publications.
 
    Netscape  released its first product, Navigator 1.0, in December 1994, which
offered an easy to use graphical user interface for browsing the World Wide  Web
(the  "Web"). Since  that time, the  Company has become  increasingly focused on
offering user and network services  for use in intranet applications,  including
features with e-mail and graphics. The Company currently offers a broad suite of
software  products and tools, targeted primarily at corporate intranets, for use
in a variety  of information sharing,  network management and  commerce-enabling
applications.  92 of  the Fortune  100 companies  use Netscape  for intranets or
Internet solutions.
 
    To reach a diverse and worldwide customer base, Netscape delivers its  suite
of  products and  services through  multiple distribution  channels. The Company
offers its products  via a direct  sales force, telesales,  and the Internet  as
well  as through  resellers such  as original  equipment manufacturers ("OEMs"),
systems integrators, value  added resellers (together  with systems  integrators
referred   to   herein  as   "VARs")   and  software   retailers  (collectively,
"Resellers"). To accelerate the acceptance  of the Company's products,  Netscape
has  entered  into  reseller  agreements  with  leading  telecommunications  and
technology companies  with  complementary resources.  These  companies  include,
among  others,  AT&T Corp.  ("AT&T"),  Apple Computer,  Inc.  ("Apple"), British
Telecom, Compaq  Computer  Corporation  ("Compaq"),  Deutsche  Telekom,  Digital
Equipment  Corporation  ("Digital"),  France  Telecom,  Hewlett-Packard  Company
("Hewlett-Packard"),  International  Business   Machines  Corporation   ("IBM"),
Informix  Software,  Inc. ("Informix"),  Novell,  Inc. ("Novell"),  Olivetti SPA
("Olivetti"),  Siemens  AG   ("Siemens"),  Silicon   Graphics,  Inc.   ("Silicon
Graphics"), Sybase, Inc. ("Sybase") and Sun Microsystems, Inc. ("Sun").]
 
    In  October  1996, the  Company announced  a matched  server/client solution
focused on the intranet  market as an  upgrade and extension  of its server  and
client  products. Netscape SuiteSpot  3.0, an upgrade  to Netscape SuiteSpot 2.0
which is planned  to be commercially  available in  the first half  of 1997,  is
designed  to  be an  integrated suite  of server  software that  offers advanced
messaging and  groupware  functionality, provides  an  open foundation  for  the
creation  of network-based applications and enables flexible content management.
Netscape Communicator 4.0, an upgrade to Netscape Navigator which is planned  to
be  commercially  available in  the  first half  of 1997,  is  designed to  be a
componentized suite of  client software for  open HTML-based e-mail,  groupware,
authoring,  calendaring and Web  browsing. Together, the  Netscape SuiteSpot 3.0
and Communicator 4.0 solution are designed  to offer a matched feature  approach
enabling   organizations  to   use  e-mail,   groupware  and   other  enterprise
applications across an open network.
 
    Netscape was incorporated in  Delaware in April  1994. Netscape's home  page
can  be located on the Web  at http://home.netscape.com. The Company's principal
executive office  is  located  at  501 East  Middlefield  Road,  Mountain  View,
California  94043, and its telephone number  at this location is (415) 254-1900.
Netscape's common stock is traded on the Nasdaq National Market under the symbol
"NSCP." Except as otherwise  noted herein, all references  to "Netscape" or  the
"Company" shall mean Netscape Communications Corporation and its subsidiaries.
 
                                       4
<PAGE>
                                  RISK FACTORS
 
    IN ADDITION TO THE OTHER INFORMATION IN THIS PROSPECTUS AND IN THE DOCUMENTS
INCORPORATED BY REFERENCE HEREIN, THE FOLLOWING RISK FACTORS SHOULD BE CAREFULLY
CONSIDERED  IN EVALUATING  THE COMPANY  AND ITS  BUSINESS BEFORE  PURCHASING THE
COMMON STOCK OFFERED BY THIS PROSPECTUS. THE SECTION ENTITLED  "BUSINESS--REPORT
DEVELOPMENTS"  IN THIS PROSPECTUS CONTAINS FORWARD-LOOKING STATEMENTS WITHIN THE
MEANING OF SECTION  27A OF THE  SECURITIES ACT OF  1933 AND SECTION  21E OF  THE
SECURITIES  EXCHANGE ACT  OF 1934. ACTUAL  RESULTS COULD  DIFFER MATERIALLY FROM
THOSE PROJECTED  IN THE  FORWARD-LOOKING  STATEMENTS AS  A  RESULT OF  THE  RISK
FACTORS SET FORTH BELOW AND ELSEWHERE IN THIS PROSPECTUS.
 
POTENTIAL FLUCTUATIONS IN QUARTERLY RESULTS
 
    As a result of the Company's relatively limited operating history and recent
acquisitions, the Company does not have relevant historical financial data for a
significant  number  of periods  on which  to  base planned  operating expenses.
Accordingly, the Company's expense  levels, which are to  a large extent  fixed,
are  based in part on  its expectations as to  future revenues. In addition, the
Company typically operates with minimal backlog, therefore, quarterly sales  and
operating  results generally depend on  the volume and timing  of and ability to
fulfill orders received within the quarter, which are difficult to forecast. The
Company typically recognizes a substantial portion  of its revenues in the  last
month of each quarter. Accordingly, the Company may be unable to adjust spending
in  a timely  manner to  compensate for any  unexpected revenue  shortfall. As a
result, any  significant shortfall  of  demand for  the Company's  products  and
services  in  relation to  the Company's  expectations  would have  an immediate
material adverse  impact  on  the  Company's  business,  operating  results  and
financial  condition. Further,  as the  Company becomes  increasingly focused on
sales to enterprise  customers, the  Company expects  that a  limited number  of
large  sales may account for a significant  portion of revenue in some quarters,
resulting in fluctuations in revenue  in future periods and adversely  impacting
operating  results  in periods  of lower  than  expected revenue.  Moreover, the
Company (i) plans to continue to increase its operating expenses to fund greater
levels of research and development, increase its sales and marketing operations,
develop new distribution channels, improve its operational and financial systems
and broaden its  customer support capabilities  and (ii) may  continue to  incur
significant  merger-related charges  and other  increases in  operating expenses
associated with recently completed  and any future  acquisitions. To the  extent
that  such  expenses  precede  or are  not  subsequently  followed  by increased
revenues, the Company's business, operating results and financial condition will
be materially adversely affected.
 
    The  Company  expects  to  experience  significant  fluctuations  in  future
quarterly operating results that may be caused by many factors, including demand
for  the  Company's products,  introduction or  enhancement  of products  by the
Company and its competitors,  market acceptance of new  products, the timing  of
large  sales  (particularly to  enterprise customers),  price reductions  by the
Company (such as those made in October 1995 and March 1996) or its  competitors,
changes  in how  products are priced  (such as  the change in  client and server
pricing announced in  October 1996),  the mix of  distribution channels  through
which  products are  sold, the  mix of  products and  services sold,  the mix of
international and North  American revenues, costs  of litigation, lengthy  sales
cycles  and general economic  conditions. In particular,  as the Company becomes
increasingly focused on sales to enterprise customers the Company believes  that
quarterly  operating results may fluctuate  due to the timing  of revenue from a
limited number of large sales. In  addition, as a strategic response to  changes
in  the competitive environment, the Company may  from time to time make certain
pricing or marketing decisions (such as the recently announced change in  client
and  server pricing)  or business combinations  (such as  the Collabra Software,
Inc. ("Collabra"), InSoft, Inc. ("InSoft"), Netcode Corporation ("Netcode")  and
Paper Software, Inc. ("Paper Software") business combinations) that could have a
material  adverse effect  on the  Company's business,  results of  operations or
financial condition. As  a result,  the Company  believes that  period-to-period
comparisons  of its  results of  operations are  not necessarily  meaningful and
should not be relied  upon as any indication  of future performance. Because  of
all  of the  foregoing factors, it  is likely  that in some  future quarters the
Company's operating  results will  be below  the expectations  of public  market
analysts    and    investors.    In    such   event,    the    price    of   the
 
                                       5
<PAGE>
Company's common  stock  would  likely be  materially  adversely  affected.  See
"Management's  Discussion  and Analysis  of Financial  Condition and  Results of
Operations" in  each of  the Company's  Quarterly Report  on Form  10-Q for  the
quarter  ended September  30, 1996  (the "Third  Quarter 10-Q")  and 1995 Annual
Report to Stockholders (the "Annual Report").
 
COMPETITION
 
    The market  for software  and services  for intranets  and the  Internet  is
relatively  new, intensely  competitive, rapidly  evolving and  subject to rapid
technological change. The Company expects competition to persist, intensify  and
increase  in the future. Many of the Company's current and potential competitors
have  longer   operating  histories,   larger  installed   customer  bases   and
significantly  greater  financial,  technical, marketing,  public  relations and
distribution resources  than  the  Company. Such  competition  could  materially
adversely   affect  the  Company's  business,  operating  results  or  financial
condition. The Company's current and  potential competitors can be divided  into
several  groups: Microsoft  Corporation ("Microsoft"),  Web server  software and
service vendors, browser software vendors, and other operating system vendors.
 
    In particular  the market  for  intranet software  is rapidly  evolving  and
increasingly  competitive. The  Company's intranet solution  of SuiteSpot server
software and Netscape Navigator  client software has  recently been upgraded  to
include  more robust e-mail features.  The Company's intranet solution currently
competes  with  Lotus  Development  Corporation's  ("Lotus")  Lotus  Notes   and
Microsoft   Exchange,  both  of  which   offer  electronic  mail  and  groupware
capability. In addition, Oracle has announced  its intention to compete in  this
market  through its InterOffice  products. Lotus, Microsoft  and Oracle all have
significantly greater  financial,  technical,  marketing  and  public  relations
resources,  larger installed customer bases, greater distribution capability and
significantly greater experience in selling to enterprises than the Company.
 
    MICROSOFT.  Microsoft is devoting  a significant portion of its  substantial
resources  to  developing,  marketing  and  distributing  Internet  and intranet
software and services in an attempt to gain market share. Microsoft has  bundled
its own browser with its Windows 95 operating system, allows it to be downloaded
for  free over the Internet and offers it  as a free product to distributors and
end-users, including  distributors  and  end-users of  the  Company's  products.
Microsoft  recently introduced  a new version  of this browser  that has similar
features and functionality to  the browser features  of Netscape Navigator  3.0,
and  this  new version  will likely  reduce  Netscape Navigator's  market share.
Microsoft has  also  announced that  future  versions of  its  Microsoft  Office
Applications suite will offer enhanced Internet and intranet capability that may
be  dependent  upon certain  functionality of  Microsoft's browser.  Further, in
August 1996, Microsoft shipped  Version 2.0 of  its Internet Information  Server
("IIS")  that is bundled  with Microsoft's Windows  NT Advanced Server operating
system at  no  additional  cost,  which may  cause  further  price  pressure  on
Netscape's server products and may reduce Netscape's market share. Microsoft has
also  been  adding  Internet and  intranet  capability  to its  range  of server
software offered on the Windows NT operating system. Microsoft is bundling a Web
authoring tool for free with its NT Server and recently introduced a server that
will compete with Netscape Proxy Server. Further, Microsoft is expected to  soon
begin   offering  products   in  the  commercial   applications  software  area,
particularly products competitive  to Netscape  Merchant System.  In June  1996,
Microsoft  announced server products for Internet service providers ("ISPs") and
content providers to set  up Web servers and  related services. In the  intranet
software  market, Microsoft has  recently begun offering  Microsoft Exchange, an
e-mail and groupware product that operates in conjunction with Microsoft's  Back
Office  and  browser products.  Microsoft  also recently  announced  its Outlook
product, which  is intended  to be  a universal  browser for  intranets and  the
Internet.
 
    Microsoft's significant focus and product development activity in the market
for  Internet  and  intranet  products  and  services  and  the  penetration  of
Microsoft's software  into its  installed  base of  PC users  has  significantly
increased  the competitive pressures on the  Company. Such pressures have placed
significant price pressure on the Company and in the future may result in  price
reductions in Netscape's products and
 
                                       6
<PAGE>
may also materially reduce Netscape's market share. If this were to occur, sales
of Netscape's products in particular, and Netscape's business, operating results
and financial condition in general, could be materially adversely affected.
 
    The  Company  believes that  Microsoft has  attempted to  create competitive
advantages for its browser and server  products by bundling these products  with
its  operating systems,  often at  no additional  cost. Moreover,  Microsoft has
announced its intention  to bundle  its browser and  server products  in a  more
tightly integrated fashion with its underlying operating systems. If Microsoft's
browser  and  server  products  are  more  tightly  integrated  with Microsoft's
operating systems, the ability  of Microsoft's competitors, including  Netscape,
to  obtain effective access  to Microsoft's operating  systems could be impeded,
particularly if  such  competitors do  not  obtain the  application  programming
interfaces  or  other  technical  information  necessary  to  access Microsoft's
operating systems in  a timely fashion.  Microsoft may also  use other means  of
attempting  to restrict access to its  operating systems. For example, Microsoft
may assert licensing or  other restrictions which could  restrict the access  of
competitors to its operating systems. In particular, Microsoft has asserted that
its  Windows NT Workstation operating system is not meant to be used as a server
operating system  for a  Web site.  If Microsoft  is successful  in  restricting
access to its operating systems, sales of Netscape's products in particular, and
Netscape's business, operating results and financial condition in general, could
be materially adversely affected.
 
    The Company also believes that Microsoft has used, and will continue to use,
its  dominant position in  desktop software to  secure preferential distribution
and bundling contracts with third parties such as ISPs, online service providers
and VARs, including third  parties with whom the  Company has relationships.  In
addition,  the  Company believes  that  Microsoft may  promote  technologies and
standards with  which  Netscape's  products are  not  compatible.  For  example,
Microsoft  is promoting its proprietary ActiveX  technology as an alternative to
the Java  programming  language  for  Internet  application  software.  Although
Netscape  has announced that it  will provide native support  for ActiveX on the
Windows 95 platform in Netscape Communicator 4.0, if Microsoft is successful  in
promoting  widespread adoption  of its ActiveX  technology as  an alternative to
Java, Netscape's business,  operating results and  financial condition could  be
materially adversely affected. Similarly, Microsoft is promoting its proprietary
DCOM  technology  as  an alternative  to  the  CORBA and  IIOP  standards  for a
cross-platform, network-based environment.  The Company has  endorsed the  CORBA
and  IIOP standards in its products, and if Microsoft is successful in promoting
widespread adoption of  its DCOM technology,  the Company's business,  operating
results and financial condition could be materially adversely affected.
 
    Microsoft  has a longer operating history,  a much larger installed base and
number of employees and dramatically greater financial, technical, marketing and
public relations resources, access to distribution channels and name recognition
than the Company,  all of  which are  a significant  competitive advantage.  For
example,  Microsoft is currently  offering certain of  its Internet and intranet
products for free or for no additional charge when bundled with another  product
and  may eventually offer all of its  Internet and intranet products for free or
for no  additional charge  when bundled  with another  product. In  addition  to
offering  its browser and  server products for free,  Microsoft is also offering
special incentives,  such as  free  access to  Web  sites that  would  otherwise
require  a  subscription fee,  to  users of  its  browser product.  In addition,
Microsoft is investing  significantly in  localizing its  Internet and  intranet
software in non-English languages, which may be a competitive threat as Netscape
attempts  to  expand its  international  business. As  a  result of  all  of the
foregoing, there can be no assurance that Netscape's business, operating results
and financial condition will not be materially adversely affected.
 
    OTHER  COMPETITION.    In  addition  to  Microsoft,  several  companies  are
currently  offering Web server software products  that compete directly with the
Company's Web  server  products.  Organizations offering  competing  Web  server
products  for the  Internet include the  Apache Group ("Apache")  (which has the
largest measured  share  of  Web servers  on  the  Internet as  of  July  1996),
Microsoft  and  the  National  Center  for  Supercomputing  Applications  at the
University of  Illinois ("NCSA").  Unlike Netscape,  which charges  for its  Web
server  products for  the Internet, the  Web servers from  Apache, Microsoft and
NCSA are offered for
 
                                       7
<PAGE>
free. Companies offering  competing Web  server products  for intranets  include
Microsoft,  IBM, Oracle  and Novell, among  others. Some of  these companies are
enhancing the functionality of their existing products through their Web  server
product  offerings. In addition to Microsoft's  bundling of IIS with its Windows
NT Advanced Server, Lotus, a subsidiary of IBM, has developed a Web server based
on its popular Notes group software  program. Oracle's Web server product  works
with  its large  installed base of  database software. Companies  that offer Web
server and client products that are or can be bundled with operating systems  or
databases  are particularly  formidable competition  in the  market for intranet
software. The  Company  also  expects  competition  from  companies  that  offer
products  competitive  with  the Company's  commercial  application  products by
enabling Web site creation and maintenance and a framework for online  commerce.
These  companies include Open Market, Inc., BroadVision, Inc., Connect, Inc. and
Edify Corporation. In the future, software companies which have server  products
in  other product categories may choose to enhance the functionality of existing
products or develop new  products which are competitive  with the Company's  Web
server and commercial applications products.
 
    In  addition  to  Microsoft,  several  companies  are  currently  offering a
client-based Web  browser that  competes directly  with the  Company's  Netscape
Navigator  product line. NCSA distributes its product, NCSA Mosaic, for free for
noncommercial use.
 
    The  Company  believes  that  other  operating  system  vendors  may  become
competitors.  Although  IBM  and  Apple  have  each  announced  an  intention to
incorporate Netscape Navigator client software into their operating systems, IBM
and Apple are each currently offering competing browsers and may continue to  do
so.   In  addition,  IBM  and  Apple   may  also  incorporate  some  Web  server
functionality  into  their  operating  systems  which  would  compete  with  the
Company's  Web  server and  commercial applications  products. The  Company also
expects Unix  operating  systems vendors,  such  as Sun,  Hewlett-Packard,  IBM,
Digital,  The Santa Cruz Operation, Inc. ("Santa Cruz") and Silicon Graphics, to
incorporate Web  client and  server software  into their  operating systems.  If
these  companies  incorporate  Web  client or  server  functionality  into their
software products  and such  technology  is not  licensed  from Netscape  or  is
licensed  from Netscape at significantly reduced prices, the Company's business,
operating  results  and  financial  condition  could  be  materially   adversely
affected.
 
    Additional  competition could come from client/server applications and tools
vendors,  multimedia  companies,   document  management  companies,   networking
software  companies,  network  management  companies  and  educational  software
companies. Further, the Company's current  products are designed around  certain
standards,  and industry  acceptance of  competing standards  could decrease the
demand for the Company's products.
 
    Competitive factors in  the market  for Internet and  intranet software  and
services  include core technology, breadth of product features, product quality,
marketing and distribution resources, pricing, and customer service and support.
Except as set forth above, the Company believes it presently competes  favorably
with  respect to each of these factors.  However, the market and competition are
still new and  rapidly emerging,  especially the intranet  software market,  and
there  can be no assurance that the Company will be able to compete successfully
against current or future competitors, nor can there be any assurance that  this
competition  will not  result in price  reductions of the  Company's products or
loss of  market share  or will  not in  some other  manner materially  adversely
affect the Company's business, operating results and financial condition.
 
NEW PRODUCT DEVELOPMENT AND TECHNOLOGICAL CHANGE
 
    Substantially   all  of  the  Company's  revenues  have  been  derived,  and
substantially all of the Company's future  revenues are expected to be  derived,
from  the  license  of  its  software  and  sale  of  its  associated  services.
Accordingly, broad acceptance of the Company's software products and services by
customers is critical to the Company's future success. However, the markets  for
the  Company's  products  are  characterized  by  rapidly  changing  technology,
evolving industry standards and  frequent new product introductions;  therefore,
the Company's future success will depend on its ability to design, develop, test
and support new software
 
                                       8
<PAGE>
products  and  enhancements  on  a timely  and  cost-effective  basis  that meet
changing customer needs and respond  to technological developments and  emerging
industry standards. There can be no assurance that the Company will successfully
identify  new product opportunities and develop  and bring new products, such as
Netscape SuiteSpot 3.0 and Netscape Communicator 4.0, to market in a timely  and
cost-effective manner, or that products or technologies developed by others will
not  render the Company's  products or technologies  obsolete or noncompetitive.
While  the  Company  has  addressed  the  need  to  develop  new  products   and
enhancements primarily through its internal development efforts, the Company has
also  addressed this  need through acquisitions  and the license  of third party
technology. Acquisitions involve numerous  risks, including difficulties in  the
assimilation  of  the  operations,  technologies and  products  of  the acquired
companies, the diversion of management's attention from other business concerns,
risks of entering markets in  which the Company has  no or limited direct  prior
experience and where competitors in such markets have stronger market positions,
and  the potential loss of  key employees of the  acquired company. Licensing of
third party technology also involves numerous risks, including product liability
claims based on  licensed technology,  liability for  licensed technology  which
infringes  the proprietary  rights of others,  the potential  inability of third
party licensors to indemnify the Company for intellectual property  infringement
claims,  the risk that the scope of  third party licensor indemnification is not
as broad as the indemnification the  Company provides to its customers, and  the
unavailability  of similar  technology on  commercially reasonable  terms in the
event  that  the  third  party  technology  is  unavailable.  See   "--Uncertain
Protection of Intellectual Property; Unisys Patent Enforcement; Challenge to the
RSA License; Risks Associated with Licensed Third Party Technology." The failure
of  the Company's  new product development  efforts, especially  with respect to
Netscape SuiteSpot  3.0 or  Netscape  Communicator 4.0,  could have  a  material
adverse  effect on  the Company's  business, financial  condition or  results of
operations.  The  Company's  current   products  are  designed  around   certain
standards,  including, for example,  security standards, and  current and future
sales of  the Company's  products  will be  dependent,  in part,  on  widespread
adoption  of  such standards  by  enterprises, consumers,  developers  and other
software providers. Widespread adoption of a standard not supported by  Netscape
could  have  a  material adverse  effect  on the  Company's  business, operating
results or financial condition. In addition, there can be no assurance that  the
Company  will  not  experience  difficulties that  could  delay  or  prevent the
successful  development,  introduction  and   marketing  of  new  products   and
enhancements,  such as Netscape SuiteSpot 3.0  and Netscape Communicator 4.0, or
that its new  products and  enhancements, including Netscape  SuiteSpot 3.0  and
Netscape  Communicator  4.0,  will  adequately  meet  the  requirements  of  the
marketplace and achieve market acceptance. Further, because the Company has only
recently commenced shipment of many of  its products, there can be no  assurance
that,  despite testing  by the Company  and by current  and potential customers,
errors will  not  be  found  in  the  Company's  products,  or,  if  discovered,
successfully  corrected in a timely and cost-effective manner. If the Company is
unable to develop on  a timely and cost-effective  basis new software  products,
enhancements  to existing products or error corrections, or if such new products
or enhancements  do  not  achieve market  acceptance,  the  Company's  business,
operating results and financial condition will be materially adversely affected.
See "Business--Recent Developments--Planned Products and Releases".
 
DEVELOPING MARKET; NEW ENTRANTS; UNCERTAIN ACCEPTANCE OF THE COMPANY'S PRODUCTS;
PRICE EROSION;
UNCERTAIN ADOPTION OF INTERNET AND INTRANETS AS A MEDIUM OF COMMERCE AND
COMMUNICATIONS
 
    The  market  for the  Company's software  and  services, especially  for its
intranet products and services,  is relatively new, is  rapidly evolving and  is
characterized  by an increasing number of market entrants who have introduced or
developed products and services for communication and commerce over the Internet
and intranets. As is typical in the case of a new and rapidly evolving industry,
demand and market acceptance for  recently introduced products and services  are
subject to a high level of uncertainty. The industry is relatively young and has
a  limited number of  proven products. Moreover,  critical issues concerning the
use of intranets  and of  the Internet (including  security, reliability,  cost,
ease  of deployment and administration and quality of service) remain unresolved
and may  impact the  growth of  intranet  and Internet  use. While  the  Company
believes  that its software  products offer significant  advantages for commerce
and communication over the
 
                                       9
<PAGE>
Internet  and  intranets,  there   can  be  no   assurance  that  commerce   and
communication over the Internet or intranets will become widespread, or that the
Company's products for commerce and communication over the Internet or intranets
will become widely adopted for these purposes.
 
    In  particular,  the Company's  client  software competes  with  free client
software distributed by online service providers, Internet access providers  and
others.  In addition,  computer operating systems  companies, notably Microsoft,
bundle client software with their operating  systems at little or no  additional
cost  to users, which  may cause the  price of the  Company's client products to
decline. The  Company  announced  significant price  reductions  in  its  server
product  line during the  quarter ended December 31,  1995 and announced further
price reductions in its server product line in March 1996. See  "--Competition."
Moreover,  continued market  acceptance of  the Company's  server and commercial
applications software products is substantially  dependent upon the adoption  of
the  Internet and intranets for commerce and communications. The adoption of the
Internet or intranets  for commerce  and communications,  particularly by  those
individuals  and  enterprises which  have  historically relied  upon alternative
means of commerce and communication, generally requires the acceptance of a  new
way   of  conducting   business  and  exchanging   information.  In  particular,
enterprises that have already invested  substantial resources in other means  of
conducting  commerce and exchanging information may be particularly reluctant or
slow to  adopt a  new strategy  that  may make  some or  all of  their  existing
information  systems  technology, software  and  systems obsolete.  In addition,
there can be no assurance that individual  PC users in business or at home  will
adopt  or, if  adopted, continue  to use  the Internet  or intranets  for online
commerce or communication.
 
    Because the market for the  Company's products and services, especially  its
intranet  products and services, is relatively new and evolving, it is difficult
to predict the future growth rate, if any, and size of this market. There can be
no assurance  that the  market  for the  Company's  products and  services  will
continue to develop, that the Company's new products or services, especially its
intranet  products and services,  will be adopted or  that existing products and
services will continue to be adopted, or that the Internet or intranets will  be
widely  adopted for commerce and communication.  If the market for the Company's
products fails to  continue to develop,  develops more slowly  than expected  or
becomes  saturated  with  competitors,  or if  the  Company's  new  products and
services, especially its intranet products  and services, do not achieve  market
acceptance,  the Company's  business, operating results  and financial condition
will be materially adversely affected.
 
MANAGEMENT OF GROWTH
 
    The rapid execution necessary  for the Company to  fully exploit the  market
window  for  its  products  and  services  requires  an  effective  planning and
management process.  The Company's  rapid  growth has  placed, and  its  planned
growth  is expected to continue to place,  a significant strain on the Company's
managerial, operational and financial resources.  As of September 30, 1996,  the
Company  had  grown  to  approximately 1,400  employees  from  approximately 189
employees on December  31, 1994.  In addition,  the Company  has completed  four
acquisitions in the last 12 months; assimilating the operations and personnel of
such  acquired companies has  also placed a significant  strain on the Company's
managerial, operational  and  financial resources.  To  manage its  growth,  the
Company  must continue  to implement and  improve its  operational and financial
systems and to expand, train and manage its employee base. Further, the  Company
is  required and will  continue to be required  to manage multiple relationships
among various customers, suppliers, resellers, licensors, strategic partners and
other third parties.  Although the Company  believes that it  has made  adequate
allowances  for the costs and risks associated with this expansion, there can be
no assurance that the Company's systems, procedures or controls will be adequate
to support the Company's current or future operations or that Company management
will be able to  effectively manage this expansion  and still achieve the  rapid
execution  necessary  to  fully  exploit the  market  window  for  the Company's
products and  services in  a  timely and  cost-effective manner.  The  Company's
future operating results will also depend on its ability to expand its sales and
marketing  organizations,  implement  and manage  new  distribution  channels to
penetrate different and  broader markets, particularly  the market for  intranet
software  for the enterprise,  and expand its  support organization commensurate
with the increasing base of its installed
 
                                       10
<PAGE>
products. If the  Company is unable  to manage growth  effectively or unable  to
achieve the rapid execution necessary to fully exploit the market window for the
Company's  products  and services  in a  timely  and cost-effective  manner, the
Company's business, operating results and financial condition will be materially
adversely affected.
 
RISKS OF ACQUISITIONS AND INVESTMENTS
 
    During the nine months ended September  30, 1996, the Company completed  the
business  combinations with InSoft,  Paper Software and  Netcode and incurred an
aggregate of $6.1 million in acquisition and related costs. In addition,  during
the  nine months ended September 30, 1996, the Company formed two joint ventures
and made several equity investments in companies with complementary  technology.
As  part  of its  overall  strategy, the  Company  plans to  enter  into further
business combinations and  significant investments  in complementary  companies,
products  or  technologies  and  to  enter  into  joint  ventures  and strategic
alliances with other companies.  Any such transactions  would be accompanied  by
the  risks commonly  encountered in  such transactions.  In particular, business
combinations with high technology companies include such risks as the difficulty
of assimilating  the operations  and personnel  of the  combined companies,  the
potential  disruption of the Company's ongoing business, the inability to retain
key technical and managerial personnel, the inability of management to  maximize
the  financial  and strategic  position of  the  Company through  the successful
integration  of  acquired  businesses,   additional  expenses  associated   with
amortization   of  acquired  intangible  assets,   the  maintenance  of  uniform
standards, controls, procedures and policies and the impairment of relationships
with employees and customers  as a result of  any integration of new  personnel.
There  can be no  assurance that the  Company would be  successful in overcoming
these risks or any other problems  encountered in connection with such  business
combinations,  investments or joint ventures or  that such transactions will not
materially adversely  affect  the  Company's business,  financial  condition  or
results of operations.
 
LIMITED OPERATING HISTORY; ACCUMULATED DEFICIT
 
    The  Company was incorporated  in April 1994, and,  although the Company has
acquired a number of companies which  were incorporated prior to that time,  the
Company  only commenced shipment of its  products for intranets and the Internet
in December 1994. Accordingly,  the Company has  a relatively limited  operating
history  upon which an evaluation of the Company and its prospects can be based.
The Company's prospects must be considered  in light of the risks, expenses  and
difficulties  frequently  encountered by  companies  in their  earlier  stage of
development, particularly  companies in  new and  rapidly evolving  markets.  To
address   these  risks,  the  Company  must,  among  other  things,  respond  to
competitive developments,  continue to  attract, retain  and motivate  qualified
persons,  expand  its  management  processes and  capabilities  and  continue to
upgrade its technologies  and successfully commercialize  products and  services
incorporating such technologies. There can be no assurance that the Company will
be  successful in  addressing such risks.  The Company incurred  net losses from
inception through the quarter ended June 30, 1995. As of September 30, 1996, the
Company had an accumulated  deficit of $11.0 million.  Although the Company  has
experienced  revenue growth in recent periods,  historical growth rates will not
be sustained and are not indicative of future operating results. There can be no
assurance that the Company will sustain profitability.
 
NEED TO MANAGE EVOLVING MARKET AND PRODUCTS
 
    The Company's  software  business  has historically  been  characterized  by
relatively short sales cycles, relatively small initial sales orders, relatively
simple uses for its software, short product development cycles and low aggregate
royalty  payments to third parties for embedded technology. However, the Company
has evolved and expanded  its product lines, and,  as the Company has  increased
its  focus on  sales to enterprise  customers, the Company's  business has been,
and, will continue to be, characterized  by longer sales cycles, larger  initial
sales  orders,  more complex  use of  its  software, longer  product development
cycles and  higher aggregate  royalty  payments to  third parties  for  embedded
technology.  For example,  the Company's  server product  line has  evolved from
software products which  merely enabled publication  of HTML-based documents  to
SuiteSpot,  an  integrated suite  of server  products that  address an  array of
complex information technology  issues such as  e-mail, groupware,  calendaring,
security for internal information and online
 
                                       11
<PAGE>
commerce,  as well as  information publication. Further,  the Company now offers
complex commercial  application  software to  accompany  its server  and  client
software. Organizations which initially purchased Internet and intranet products
for trial use are now building complex intranets. The Company expects that sales
of its software will be increasingly made to enterprises, and that due to higher
price  points and more  complex uses, these  sales will require  approval at the
highest levels of the customer's organization. These sales are likely to be more
difficult, expensive  and  time-consuming  for the  Company,  and  will  require
greater  training  of  the  Company's  sales  personnel  and  reseller partners.
Further, these sales generally  involve a significant  commitment of capital  by
prospective  customers,  with the  attendant  delays frequently  associated with
large capital  expenditures and  lengthy acceptance  procedures. For  these  and
other  reasons, the  sales cycle  associated with  the license  of the Company's
software products has lengthened, may continue  to lengthen and is subject to  a
number of significant risks over which the Company has little or no control. The
Company  has relatively limited experience with  these types of sales, and there
can be no assurance that  the Company will be  able to successfully manage  this
evolution in its business, and the failure to successfully manage this evolution
in  its business could have a material adverse effect on the Company's business,
operating results and financial condition.
 
EVOLVING DISTRIBUTION CHANNELS
 
    The Company sells its products directly  to end-users and via the  Internet.
In  addition, the Company offers its  products indirectly through OEMs, VARs and
software retailers.  The  Company is  currently  pursuing a  strategy  which  is
intended  to  increase sales  through  OEMs, VARs  and  system integrators  as a
percentage of total revenues, especially  in international markets. The  Company
expects that any material increase in sales through Resellers as a percentage of
total revenues, especially any increase in the percentage of sales through OEMs,
VARs and system integrators, will adversely affect the Company's average selling
prices and gross margins due to the lower unit prices that are typically charged
when  selling  through  indirect  channels. In  recent  quarters,  sales through
indirect channels have increased  as a percentage of  total revenues, which  has
adversely  impacted average selling prices; however,  gross margins to date have
not decreased due  to the  large percentage of  sales through  OEMs, which  have
lower  associated costs of revenues  than other Resellers due  to the absence of
packaging costs. Other potential adverse consequences of the Company's focus  on
increasing sales through Resellers are the diversion of management resources and
attention  from direct sales, which could adversely affect direct sales revenue,
and greater revenue fluctuation due to  a greater percentage of retail  revenue,
which   tends  to  fluctuate  with  product  releases  and  may  be  subject  to
seasonality. Moreover, there can be no  assurance that the Company will be  able
to  continue to  attract and retain  Resellers that  will be able  to market the
Company's products effectively, particularly Resellers of intranet software  for
the  enterprise,  and will  be qualified  to  provide timely  and cost-effective
customer support and service.  There also can be  no assurance that the  Company
will be able to manage conflicts among its Resellers. In addition, the Company's
agreements  with Resellers typically do not restrict Resellers from distributing
competing products, and in many cases may be terminated by either party  without
cause.  Further, in  some cases the  Company has  granted exclusive distribution
rights that are limited by territory and in duration. Consequently, the  Company
may  be adversely affected should any  Reseller fail to adequately penetrate its
market segment. The inability to recruit, manage or retain important  Resellers,
particularly  Resellers  of  intranet  software  for  the  enterprise,  or their
inability to  penetrate  their  respective  market  segments,  could  materially
adversely   affect  the  Company's  business,  operating  results  or  financial
condition.
 
    In addition  to  expanding  its  direct sales  channels,  the  Company  will
continue  to  distribute  its  products  electronically  through  the  Internet.
Distributing the Company's  products through  the Internet  makes the  Company's
software  more susceptible than other software  to unauthorized copying and use.
The Company has historically allowed and currently intends to continue to  allow
potential  customers to electronically  download its client  and server software
for a free evaluation period. There can be no assurance that, upon expiration of
the evaluation period, the  Company will be able  to collect payment from  users
that  retain a copy of the Company's  software. In addition, by distributing its
products for free evaluation over the Internet, the Company may have reduced the
future  demand  for   its  products.  If,   as  a  result   of  changing   legal
 
                                       12
<PAGE>
interpretations  of liability for unauthorized use  of the Company's software or
otherwise,  users  were   to  become  less   sensitive  to  avoiding   copyright
infringement,  the Company's business, operating results and financial condition
would be materially adversely affected.
 
SECURITY RISKS AND SYSTEM DISRUPTIONS; LACK OF PRODUCT LIABILITY INSURANCE FOR
PRODUCTS
INCORPORATING SECURITY FEATURES
 
    The Company has included in its products security protocols which operate in
conjunction with encryption and authentication technology licensed from RSA Data
Security  Inc.  ("RSA").  Despite  the  existence  of  these  technologies,  the
Company's  products have  been found to  be vulnerable to  break-ins and similar
disruptive problems caused by Internet users. In the last two years, there  have
been  several instances in which weaknesses  or vulnerabilities in the Company's
security  implementation  were   discovered.  In  each   instance  in  which   a
vulnerability   or   weakness   was  discovered   in   the   Company's  security
implementation, the Company attempted to  address the vulnerability or  weakness
by making the various design changes in its security and reviewing those changes
both  internally and with  a broad set  of outside industry  experts. The design
changes appear to have resolved known security vulnerabilities and weaknesses in
the Company's products.
 
    In addition,  the  Company's  products  incorporate  technology  from  other
software  companies which could be vulnerable to security flaws. For example, in
March 1996  certain  security flaws  were  discovered in  the  Java  programming
language;  in  particular, one  security flaw  was  discovered which  could have
jeopardized the  security of  information  stored in  the computer  of  Netscape
Navigator  users.  Sun,  the licensor  of  Java, has  corrected  this particular
security flaw and  has distributed  the software  fix to  the Company.  However,
there can be no assurance that the Company's products will not be susceptible to
other security flaws, whether in the Company's products or technologies, in Java
or in other technology incorporated into the Company's products.
 
    Despite the Company's attempts to address the vulnerabilities and weaknesses
in  its security implementation, the  Company's products and licensed technology
incorporated in such  products may continue  to be vulnerable  to break-ins  and
similar  disruptive problems caused by Internet  users. Further, as is generally
known, weaknesses in  the environment in  which Netscape products  are used  may
compromise  the security of confidential electronic information exchanges across
the Internet. This includes, but is not limited to, the security of the physical
network, security of the physical machines used for the information transfer and
the security of the operating system on  top of which the Netscape products  are
running.  Any  such  flaws  in  the Internet  or  the  end-user  environment, or
weaknesses or vulnerabilities in the  Company's products or licensed  technology
incorporated  in such  products, would  jeopardize the  security of confidential
information sent over the Internet using Netscape software, such as credit  card
numbers  and e-mail, and  might enable others to  dismantle the special security
techniques meant to protect such transactions.
 
    Any further computer  break-ins or  other disruptions  could jeopardize  the
security  of information stored in and  transmitted through the computer systems
of end-users  of  the  Company's  products,  which  may  result  in  significant
liability  to the Company and may  also deter potential customers. Moreover, the
security and privacy concerns  of existing and potential  customers, as well  as
concerns related to computer viruses, may inhibit the growth of the Internet and
intranet  market  generally, and  the Company's  customer  base and  revenues in
particular. The  Company  attempts to  limit  its liability  to  its  customers,
including   liability  arising  from  failure  of  the  security  implementation
contained in the  Company's products, through  contractual provisions.  However,
there  can be no assurance that such  limitations will be effective. The Company
currently does not  have product  liability insurance to  protect against  risks
associated  with forced break-ins or disruptions. There can be no assurance that
additional security vulnerabilities and weaknesses will not be discovered in the
Company's products or licensed technology incorporated in such products or  that
weaknesses  in the end-user environments will not  limit the use of the Internet
as a  commercial  medium.  Any  additional  security  related  problems  in  the
Company's  products  or licensed  technology incorporated  in such  products may
require significant  expenditures of  capital and  resources by  the Company  to
alleviate  such problems, may result in lawsuits against the Company, may result
in loss of customers and may cause
 
                                       13
<PAGE>
interruptions, delays  or  cessations  of product  shipments  to  the  Company's
customers.  Any such  expenditures, lawsuits, loss  of customers, interruptions,
cessations or  delays  would  likely  have a  material  adverse  effect  on  the
Company's business, operating results and financial condition.
 
GOVERNMENT REGULATION AND LEGAL UNCERTAINTIES
 
    The  Company is not currently subject to direct government regulation, other
than pursuant to securities  laws and the  regulations thereunder applicable  to
all  publicly owned companies and laws  and regulations applicable to businesses
generally, and there are currently  few laws or regulations directly  applicable
to  access  to or  commerce  on the  Internet.  However, due  to  the increasing
popularity and use  of the  Internet, it  is likely that  a number  of laws  and
regulations may be adopted at the local, state, national or international levels
with  respect  to  the  Internet,  covering  issues  such  as  user  privacy and
expression,  pricing   of   products  and   services,   taxation,   advertising,
intellectual  property  rights,  information  security  or  the  convergence  of
traditional communication services  with Internet  communications. For  example,
the  Telecommunications Reform  Act of 1996  (the constitutionality  of which is
currently under challenge) was recently  enacted and imposes criminal  penalties
(via the Communications Decency Act or "CDA") on anyone who distributes obscene,
lascivious  or indecent communications over the Internet. Moreover, the adoption
of any such laws or regulations may  decrease the growth of the Internet,  which
could  in turn decrease  the demand for  the Company's products  or increase the
Company's cost of doing business or in some other manner have a material adverse
effect on the Company's business,  operating results or financial condition.  In
addition,  the applicability to  the Internet of  existing laws governing issues
such as property ownership, copyrights  and other intellectual property  issues,
taxation,  libel and  personal privacy is  uncertain. The vast  majority of such
laws were adopted prior to the  advent of the Internet and related  technologies
and,  as  a result,  do  not contemplate  or address  the  unique issues  of the
Internet and  related technologies.  Changes to  such laws  intended to  address
these issues, including some recently proposed changes, could create uncertainty
in  the marketplace which could reduce  demand for the Company's products, could
increase the Company's cost of doing business as a result of costs of litigation
or increased product  development costs, or  could in some  other manner have  a
material  adverse  effect  on  the  Company's  business,  operating  results  or
financial condition.
 
    Because the encryption  technology contained  in the  Company's products  is
deemed  to be a  "munition," such products  are subject to  U.S. export controls
pertaining to munitions. There  can be no assurance  that such export  controls,
either  in their current form or as  may be subsequently revised, will not limit
the Company's ability to  distribute certain encrypted  products outside of  the
United  States  or  electronically.  While  Netscape  takes  precautions against
unlawful exportation, such exportation may occur from time to time. In addition,
federal  or  state  legislation  or  regulation  may  further  limit  levels  of
encryption  or authentication  technology, and  foreign governments  could enact
import laws or  regulations that may  restrict the type  of encryption  software
that   is  permitted  for  distribution  in  their  countries.  Moreover,  as  a
consequence of  such export  controls,  Netscape must  develop and  market  both
domestic  and  international versions  of its  products that  contain encryption
software, with  the version  for the  U.S.  market having  a stronger  level  of
encryption  than the version for export to international markets. Along with the
additional costs  associated  with the  duplication  of effort  and  expense  in
research,  development, manufacturing and distribution  of different versions of
products, the Company may lose  sales from customers who  wish to have the  same
level of encryption security throughout their organization. The Company may also
encounter  difficulties competing overseas with  competitors that are subject to
less restrictive  controls.  Finally, due  to  the weaker  level  of  encryption
contained in the Company's products shipped internationally, the Company may not
acquire  the installed international base necessary to make the functionality of
its products part of an international standard.
 
    Additionally,  some  countries  have  enacted  import  laws  requiring   the
alteration  of  the  Company's products  in  order  for the  government  of such
countries to maintain a level of  control over the content of products  entering
such  countries. In addition to  the costs incurred by  the Company in complying
with varying international regulations, alteration of the Company's products may
cause such products to perform at a
 
                                       14
<PAGE>
level below their intended  level and thereby subject  the Company to  potential
liability  and other adverse consequences.  Any such export restrictions, import
restrictions, new legislation or regulation or unlawful exportation could have a
material  adverse  impact  on  the  Company's  business,  operating  results  or
financial condition.
 
UNCERTAIN PROTECTION OF INTELLECTUAL PROPERTY; UNISYS PATENT ENFORCEMENT;
CHALLENGE TO RSA LICENSE;
RISKS ASSOCIATED WITH LICENSED THIRD PARTY TECHNOLOGY
 
    The  Company's success and ability to compete  is dependent in part upon its
internally developed technology. While the Company relies on patents, trademark,
trade secret and copyright law to  protect its technology, the Company  believes
that factors such as the technological and creative skills of its personnel, new
product  developments,  frequent  product  enhancements,  name  recognition  and
reliable product maintenance are more essential to establishing and  maintaining
a technology leadership position. There can be no assurance that others will not
develop  technologies that are similar or  superior to the Company's technology.
The Company generally enters into confidentiality or license agreements with its
employees, consultants  and  vendors,  and  generally  controls  access  to  and
distribution  of its software, documentation  and other proprietary information.
Despite these precautions,  it may  be possible  for a  third party  to copy  or
otherwise   obtain  and  use  the   Company's  products  or  technology  without
authorization, or  to develop  similar  technology independently.  In  addition,
effective  patents, copyright and trade secret  protection may be unavailable or
limited in  certain foreign  countries.  To license  its products,  the  Company
relies  in part on  "shrink wrap" licenses  that are not  signed by the end-user
and, therefore, may be  unenforceable under the  laws of certain  jurisdictions.
Despite  the Company's efforts  to protect its  proprietary rights, unauthorized
parties may attempt to copy aspects of  the Company's products or to obtain  and
use  information that the Company  regards as proprietary. Policing unauthorized
use of the Company's products is difficult.  There can be no assurance that  the
steps  taken by the  Company will prevent misappropriation  of its technology or
that such  agreements  will  be  enforceable. In  addition,  litigation  may  be
necessary  in the future to enforce  the Company's intellectual property rights,
to protect the Company's trade secrets,  to determine the validity and scope  of
the proprietary rights of others, or to defend against claims of infringement or
invalidity.  Such litigation could result in  substantial costs and diversion of
resources and could have  a material adverse effect  on the Company's  business,
operating results or financial condition.
 
    Unisys  Corporation ("Unisys")  has announced  its intention  to require the
payment of royalties for the use  of compression technology associated with  the
Graphics  Interchange  Format ("GIF").  Unisys  asserts that  this  popular file
format is  based on  compression technology  patented by  Unisys. The  Company's
products  have the ability  to decompress files, including  files stored in GIF.
The Company  and, to  the Company's  knowledge, other  licensees, have  received
notice of Unisys' intention to enforce or license such patent. The Company could
incur  additional costs and liability should its  products be found to be within
the scope of the  Unisys patent, including costs  and liability from claims  for
indemnification  resulting  from  infringement. The  assertion  of  these patent
rights by  Unisys, if  successful,  could prevent  the Company's  products  from
enabling users to view files compressed in GIF. The Company does not believe its
products infringe the Unisys patent; however, there can be no assurance that the
Company's  products are not  within the scope  of the Unisys  patent or that the
Company's business,  operating  results  and financial  condition  will  not  be
materially  adversely affected if the Company's  products are found to be within
the scope of the Unisys patent.
 
    From time to time the  Company has, in addition  to the notice from  Unisys,
received,  and may receive  in the future,  notice of claims  of infringement of
other parties' proprietary rights.  Although the Company  does not believe  that
its  products infringe the proprietary rights of any third parties, there can be
no  assurance   that  infringement   or  invalidity   claims  (or   claims   for
indemnification  resulting  from infringement  claims) will  not be  asserted or
prosecuted against the Company or that any such assertions or prosecutions  will
not  materially adversely affect the  Company's business, financial condition or
results of operations. Irrespective of the validity or the successful  assertion
of  such  claims, the  Company would  incur significant  costs and  diversion of
resources with  respect to  the  defense thereof  which  could have  a  material
adverse effect on the
 
                                       15
<PAGE>
Company's  business, financial condition or  results of operations. In addition,
the assertion of such infringement claims could result in injunctions preventing
Netscape from distributing certain products, which could have a material adverse
effect on the Company's business, financial condition or results of  operations.
If  any claims or actions are asserted against the Company, the Company may seek
to obtain a license  under a third party's  intellectual property rights.  There
can  be no assurance, however, that under such circumstances, a license would be
available on reasonable terms or at all.
 
    On August 7, 1995, Netscape received a letter from a law firm purporting  to
represent   Caro-Kann   Corporation  ("Caro-Kann"),   a  subsidiary   of  Cylink
Corporation, which is a partner with  RSA in Public Key Partners ("PKP"),  which
partnership  purportedly  holds certain  exclusive  licensing rights  to certain
patents covering the practice of public key cryptography and digital signatures.
Caro-Kann alleges that the license  agreement between RSA and Netscape  relating
to  certain RSA software conflicts with the  rights held by PKP. RSA has advised
Netscape that  the allegations  of  Caro-Kann are  unfounded. The  parties  have
arbitrated   portions  of  this  dispute  and   currently  disagree  as  to  the
interpretation of the arbitration ruling. RSA has brought suit in federal  court
over  certain  patent  related  claims.  Netscape  is  unable  to  ascertain the
significance of Caro-Kann's allegations or  whether or not any decision  adverse
to RSA in the arbitration or other proceedings may invalidate or otherwise limit
the  license  to Netscape.  In Netscape's  license agreement  with RSA,  RSA has
agreed to defend and  indemnify and hold Netscape  harmless with respect to  any
claim  by a third party that the licensed software infringes any patent or other
proprietary rights. Although the Netscape license is fully paid-up, there can be
no assurance  that  the  outcome  of  this matter  would  not  lead  to  royalty
obligations.  Many  of the  Company's products  incorporate data  encryption and
server authentication technology licensed from RSA.
 
    The Company also relies on certain  other technology which it licenses  from
third  parties, including software which is integrated with internally developed
software and used in the Company's products to perform key functions. There  can
be  no assurance that these third party  technology licenses will continue to be
available to  the Company  on  commercially reasonable  terms.  The loss  of  or
inability to maintain any of these technology licenses could result in delays or
reductions in product shipments until equivalent technology could be identified,
licensed  and integrated.  Any such  delays or  reductions in  product shipments
could materially adversely affect the  Company's business, operating results  or
financial  condition. Moreover, although the Company is generally indemnified by
the third parties against  claims that the  third parties' technology  infringes
the  proprietary rights of others, such  indemnification is not always available
for all  types of  intellectual property  rights (for  example, patents  may  be
excluded)  and in some  cases the geographical scope  of such indemnification is
limited. The result is that the indemnity that the Company receives against such
claims is often less broad than the  indemnity that the Company provides to  its
customers. Even in cases in which the indemnity that the Company receives from a
third  party licensor is as broad as  the indemnity that the Company provides to
its customers, often the  third party licensors from  whom the Company would  be
receiving  indemnity are not  well-capitalized and may not  be able to indemnify
the Company  in  the  event  that such  third  party  technology  infringes  the
proprietary  rights of others.  Accordingly, the Company  could have substantial
exposure in the  event that  technology licensed  from a  third party  infringes
another  party's proprietary  rights. The  Company currently  does not  have any
liability insurance  to  protect against  the  risk that  licensed  third  party
technology infringes the proprietary rights of others. There can be no assurance
that  infringement or invalidity claims arising  from the incorporation of third
party technology, and  claims for indemnification  from the Company's  customers
resulting  from  such infringement  claims will  not  be asserted  or prosecuted
against the  Company  or that  any  such  assertions or  prosecutions  will  not
materially  adversely  affect  the Company's  business,  financial  condition or
results of operations. Irrespective of  the validity or successful assertion  of
such  claims, the  Company would  incur significant  costs and  the diversion of
resources with respect to the defense thereof, in addition to potential  product
redevelopment  costs  and delays,  all of  which could  have a  material adverse
effect on the Company's business, financial condition or results of operations.
 
                                       16
<PAGE>
DEPENDENCE ON KEY PERSONNEL
 
    The Company's performance is substantially  dependent on the performance  of
its  executive officers and key employees, many of whom have worked together for
only a  short period  of time.  Given the  Company's relatively  early stage  of
development,  the Company  is dependent  on its  ability to  retain and motivate
highly  qualified  personnel,  especially  its  management  and  highly  skilled
development  teams.  The  Company  does not  have  "key  person"  life insurance
policies on  any of  its employees.  The  loss of  the services  of any  of  its
executive  officers or other key employees  could have a material adverse effect
on the business, operating  results or financial condition  of the Company.  See
"Management".
 
    The  Company's  future success  also depends  on  its continuing  ability to
identify, hire, train and retain other highly qualified technical and managerial
personnel, especially  software developers.  Competition for  such personnel  is
intense, and there can be no assurance that the Company will be able to attract,
assimilate  or retain other highly  qualified technical and managerial personnel
in the future. The inability to  attract and retain the necessary technical  and
managerial  personnel  could have  a material  adverse  effect on  the Company's
business, operating results or financial condition.
 
RISKS ASSOCIATED WITH INTERNATIONAL OPERATIONS AND EXPANSION
 
    International revenues (sales outside  of North America) were  approximately
17%  and 28% of total revenues for the year ended December 31, 1995 and the nine
months ended September 30, 1996, respectively. A key component of the  Company's
strategy  is its  continued expansion into  international markets.  To date, the
Company has  only limited  experience in  developing localized  versions of  its
products  and marketing and  distributing its products  internationally, and the
Company is currently incurring,  and expects to  continue to incur,  significant
costs  in  developing, marketing  and  distributing localized  versions.  If the
international revenues are not  adequate to offset  the expense of  establishing
and  maintaining foreign  operations and the  costs of  localizing the Company's
products, the Company's business, operating results or financial condition could
be materially adversely  affected. There can  be no assurance  that the  Company
will  be able to successfully  market, sell and deliver  its products in foreign
markets. In addition to the uncertainty as to the Company's ability to  continue
to  generate revenues from  its foreign operations  and expand its international
presence, there are certain risks inherent in doing business on an international
level, such as unexpected changes in regulatory requirements, export and  import
restrictions,  export  and import  controls  relating to  encryption technology,
tariffs and other trade barriers, difficulties in staffing and managing  foreign
operations,  longer payment cycles, problems  in collecting accounts receivable,
political instability, fluctuations in currency exchange rates, software piracy,
seasonal reductions in business activity during the summer months in Europe  and
certain other parts of the world and potentially adverse tax consequences, which
could  adversely impact the  success of the  Company's international operations.
There can be  no assurance  that one or  more of  such factors will  not have  a
material  adverse effect on  the Company's future  international operations and,
consequently,  on  the  Company's  business,  operating  results  and  financial
condition.
 
DEPENDENCE ON THE INTERNET
 
    Although  some sales  of the Company's  products will depend  upon growth of
intranets, sales of the Company's products will continue to depend in large part
upon a  robust industry  and infrastructure  for providing  Internet access  and
carrying  Internet traffic. The Internet may not prove to be a viable commercial
marketplace because of  inadequate development of  the necessary  infrastructure
(e.g.,   reliable  network  backbone),  untimely  development  of  complementary
products (e.g., high speed modems), delays in the development or adoption of new
standards  and  protocols  required  to  handle  increased  levels  of  Internet
activity,  or due to increased government regulation. In addition, to the extent
that the Internet continues  to experience significant growth  in the number  of
users  and  the  level of  use,  there can  be  no assurance  that  the Internet
infrastructure will continue to be able to  support the demands placed on it  by
such   potential  growth.  Because  global   commerce  and  online  exchange  of
information on the Internet  and other similar open  wide area networks are  new
and evolving, it is difficult to predict with any assurance whether the Internet
will
 
                                       17
<PAGE>
prove  to be a viable commercial marketplace. If the necessary infrastructure or
complementary products are not developed, or  if the Internet does not become  a
viable  commercial marketplace,  the Company's  business, operating  results and
financial condition will be materially adversely affected.
 
EXTREME VOLATILITY OF STOCK PRICE AND RISK OF LITIGATION
 
    The Company's  common  stock  price  has been  extremely  volatile  and  has
experienced  substantial and  sudden fluctuations,  particularly as  a result of
announcements by the Company and its competitors and announcements with  respect
to  the  industry  generally.  In addition,  the  stock  market  has experienced
significant price  and volume  fluctuations that  have especially  affected  the
market   prices  of  equity  securities   of  many  high  technology  companies,
particularly Internet-related companies, and that  often have been unrelated  to
the  operating performance  of such  companies. These  broad market fluctuations
have adversely affected and may continue to adversely affect the market price of
the Company's common stock. In the past, following periods of volatility in  the
market  price of a company's securities,  securities class action litigation has
often been instituted against  such a company. Such  litigation could result  in
substantial costs and a diversion of management's attention and resources, which
would  have  a  material adverse  effect  on the  Company's  business, operating
results and financial condition.
 
CONCENTRATION OF STOCK OWNERSHIP
 
    Upon completion  of  this offering,  the  Company's executive  officers  and
directors,  together  with  entities  affiliated  with  such  individuals,  will
beneficially  own   approximately   42.5%   of  the   Company's   Common   Stock
(approximately  42.2% if the Underwriters' over-allotment option is exercised in
full). Accordingly,  these stockholders  will be  able to  exercise  significant
influence over matters requiring stockholder approval, including the election of
directors and approval of significant corporate transactions. This concentration
of  ownership may have the effect of  delaying or preventing a change in control
of the Company. See "Principal and Selling Stockholders."
 
SHARES ELIGIBLE FOR FUTURE SALE
 
    Sales of a substantial number of shares of Common Stock in the public market
following this offering could adversely affect  the market price for the  Common
Stock. Each of the executive officers and directors of the Company, and entities
affiliated  with one of  the Company's non-employee  directors, who collectively
held as of September 30, 1996 an aggregate of 35,694,037 shares, have agreed not
to sell or otherwise dispose of Common Stock of the Company through February 15,
1997 without the prior consent of Morgan Stanley & Co. Incorporated, except  for
an  aggregate  of  200,000 shares  held  by  certain executive  officers  of the
Company, which shall not  have such restriction.  Certain other stockholders  of
the   Company,  including  an  entity  affiliated  with  one  of  the  Company's
non-employee directors, who are selling an aggregate of 3,000,000 shares in this
offering and will hold an aggregate of 2,352,727 shares after the offering, have
agreed not to sell or otherwise dispose of Common Stock of the Company for up to
120 days after the date of this  Prospectus without the prior consent of  Morgan
Stanley & Co. Incorporated. The Company has agreed in the Underwriting Agreement
that  it will not, directly or indirectly,  without the prior written consent of
Morgan Stanley & Co. Incorporated, offer,  pledge, sell, contract to sell,  sell
any  option or contract  to purchase, purchase  any option or  contract to sell,
grant any option, right or warrant to purchase, or otherwise transfer or dispose
of any shares of Common Stock or any securities convertible into or exchangeable
for Common Stock, for a  period of 120 days after  the date of this  Prospectus,
subject  to  certain  limited  exceptions.  Except  for  shares  subject  to the
restrictions set forth above and (i)  14,219,720 shares subject to a  repurchase
right  of the Company which generally lapses at a rate of 20% after 10 months of
service and two percent per month thereafter, and (ii) 2,755,544 shares held  by
existing  stockholders which are "restricted securities" as that term is defined
in Rule 144 under  the Securities Act  and are not eligible  for sale until  the
expiration  of their  respective two-year holding  periods, all  other shares of
Common Stock are freely tradeable without restriction. See "Underwriters".
 
                                       18
<PAGE>
EFFECT OF CERTAIN CHARTER PROVISIONS; ANTITAKEOVER EFFECTS OF CERTIFICATE OF
INCORPORATION, BYLAWS AND
DELAWARE LAW
 
    The Board of Directors has the authority to issue up to 5,000,000 shares  of
Preferred  Stock and to determine the price, rights, preferences, privileges and
restrictions, including voting rights, of those shares without any further  vote
or action by the stockholders. The rights of the holders of Common Stock will be
subject  to, and may be adversely affected by,  the rights of the holders of any
Preferred Stock that  may be  issued in the  future. The  issuance of  Preferred
Stock,  while  providing  desirable  flexibility  in  connection  with  possible
acquisitions and other corporate  purposes, could have the  effect of making  it
more difficult for a third party to acquire a majority of the outstanding voting
stock  of  the Company.  The Company  has no  present plans  to issue  shares of
Preferred Stock.  Further,  certain  provisions of  the  Company's  Amended  and
Restated  Certificate  of  Incorporation,  including  provisions  that  create a
classified board of  directors, and of  the Amended and  Restated Bylaws and  of
Delaware  law could  delay or  make difficult  a merger,  tender offer  or proxy
contest involving the Company.
 
DILUTION
 
    Investors participating in this offering will incur immediately, substantial
dilution. To the  extent outstanding  options to purchase  the Company's  Common
Stock are exercised, there will be further dilution. See "Dilution."
 
                                       19
<PAGE>
                                USE OF PROCEEDS
 
    The  net proceeds to be  received by the Company  from the sale of 2,000,000
shares of Common Stock offered by the  Company hereby are estimated to be  $87.7
million  ($120.9  million if  the  U.S. Underwriters'  over-allotment  option is
exercised in  full), based  on an  assumed offering  price of  $46.25 and  after
deducting estimated underwriting discounts and commissions and offering expenses
payable  by the  Company. The Company  expects to  use the net  proceeds of this
offering primarily for general corporate purposes, including working capital and
capital expenditures.  A portion  of the  proceeds are  expected to  be used  to
secure  additional  facilities,  for  leasehold  improvements  and  for  general
corporate infrastructure. The Company  currently expects that  it will spend  an
additional  $35.0 million on such matters through  the end of the current fiscal
year. A  portion of  the proceeds  may  also be  used to  acquire or  invest  in
complementary businesses or products or to obtain the right to use complementary
technologies.   However,  the  Company  has  no  present  plans,  agreements  or
commitments and is  not currently  engaged in  any negotiations  to acquire  any
businesses.  Pending use of the net proceeds for the above purposes, the Company
intends to invest such funds in interest-bearing, investment-grade  obligations.
The Company will not receive any proceeds from the sale of shares by the Selling
Stockholders.
 
                          PRICE RANGE OF COMMON STOCK
 
    The following table sets forth the range of high and low sales prices of the
Company's  Common Stock  for the  indicated periods,  as reported  by the Nasdaq
National Market. The Company made its initial public offering on August 8,  1995
at  a price  of $14.00 per  share. On October  25, 1996, the  last reported sale
price for the Common Stock on the  Nasdaq National Market was $46.25 per  share.
As of October 25, 1996, the Company had approximately 2,129 holders of record of
the  Common Stock. All prices have been  restated to reflect a two-for-one stock
split effected in January 1996.
 
<TABLE>
<CAPTION>
                                                                                           HIGH        LOW
                                                                                         ---------  ---------
<S>                                                                                      <C>        <C>
Fiscal year ended December 31, 1995:
  Third Quarter (beginning August 9, 1995).............................................  $  37 3/8  $  22 7/8
  Fourth Quarter.......................................................................         87         28
Fiscal year ending December 31, 1996:
  First Quarter........................................................................         86     34 3/4
  Second Quarter.......................................................................     75 1/4     42 1/2
  Third Quarter........................................................................     65 1/2     34 1/2
  Fourth Quarter (through October 25, 1996)............................................     50 1/2     38 1/2
</TABLE>
 
                                DIVIDEND POLICY
 
    The Company  has never  paid cash  dividends on  its Common  Stock or  other
securities.  The Company  currently anticipates that  it will retain  all of its
future earnings for use in the expansion and operation of its business and  does
not anticipate paying any cash dividends in the foreseeable future.
 
                                       20
<PAGE>
                                 CAPITALIZATION
 
    The  following  table sets  forth the  capitalization of  the Company  as of
September 30, 1996, and as adjusted to  reflect the sale of 2,000,000 shares  of
Common  Stock offered  by the  Company hereby (at  an assumed  offering price of
$46.25 and after deducting estimated underwriting discounts and commissions  and
offering expenses payable by the Company):
 
<TABLE>
<CAPTION>
                                                                                           SEPTEMBER 30, 1996
                                                                                      ----------------------------
                                                                                                         AS
                                                                                      ACTUAL(1)    ADJUSTED(1)(2)
                                                                                      ----------  ----------------
                                                                                             (IN THOUSANDS)
<S>                                                                                   <C>         <C>
Long-term obligations...............................................................  $      659     $      659
Total stockholders' equity:
  Preferred Stock, $0.0001 par value; 5,000,000 shares authorized, none issued and
   outstanding......................................................................      --             --
  Common Stock, $0.0001 par value; 200,000,000 shares authorized, 84,535,395 shares
   issued and outstanding, actual; 86,535,395 shares issued and outstanding, as
   adjusted(3)......................................................................           8              9
  Additional paid-in capital........................................................     215,231        302,945
  Deferred compensation.............................................................      (6,742)        (6,742)
  Accumulated deficit...............................................................     (10,982)       (10,982)
  Other.............................................................................       1,489          1,489
                                                                                      ----------       --------
    Total stockholders' equity......................................................     199,004        286,719
                                                                                      ----------       --------
      Total capitalization..........................................................  $  199,663     $  287,378
                                                                                      ----------       --------
                                                                                      ----------       --------
</TABLE>
 
- ---------
(1) Reflects the business combinations with Collabra, InSoft, Netcode, and Paper
    Software which have been accounted for as poolings of interests.
 
(2) Assumes no exercise of the U.S. Underwriters' over-allotment option.
 
(3)  Excludes, as of September 30, 1996, (i) an aggregate of 8,301,650 shares of
    Common Stock subject to outstanding  options under the Company's 1994  Stock
    Option  Plan, 1995 Stock Plan, 1995 Director Option Plan, Collabra Software,
    Inc. 1993 Incentive  Stock Plan,  InSoft, Inc.  1993 Stock  Option Plan  and
    Netcode  Corporation 1996 Stock Plan (collectively,  the "Stock Plans") at a
    weighted average exercise  price of  $22.83 per share  and 3,257,663  shares
    reserved  for future grants of options  thereunder and (ii) 1,723,494 shares
    of Common  Stock reserved  but unissued  under the  Company's 1995  Employee
    Stock Purchase Plan.
 
                                       21
<PAGE>
                                    DILUTION
 
    The  net tangible  book value of  the Company  as of September  30, 1996 was
$195,266,000 or $2.31  per share of  Common Stock. Net  tangible book value  per
share  is determined  by dividing  the net  tangible book  value of  the Company
(total tangible  assets less  total liabilities)  by the  number of  outstanding
shares  of Common  Stock at that  date. After giving  effect to the  sale by the
Company of the 2,000,000  shares of Common Stock  offered hereby (at an  assumed
offering price of $46.25 and after deduction of estimated underwriting discounts
and commissions and offering expenses payable by the Company), the Company's pro
forma net tangible book value at September 30, 1996 would have been $282,981,000
or  $3.27 per share. This represents an  immediate increase in net tangible book
value to existing stockholders of $0.96  per share and an immediate dilution  to
new investors of $42.98 per share. The following table illustrates the per share
dilution:
 
<TABLE>
<CAPTION>
Assumed public offering price per share..............................             $   46.25
<S>                                                                    <C>        <C>
  Net tangible book value per share as of September 30, 1996.........  $    2.31
  Increase in net tangible book value per share attributable to new
   investors.........................................................        .96
                                                                       ---------
Pro forma net tangible book value per share after offering...........                  3.27
                                                                                  ---------
Dilution per share to new investors..................................             $   42.98
                                                                                  ---------
                                                                                  ---------
</TABLE>
 
    The following table sets forth on a pro forma basis as of September 30, 1996
the  difference between the number of shares  of Common Stock purchased from the
Company, the total consideration paid, and  the average price per share paid  by
the existing stockholders and by the new investors (at an assumed offering price
of   $46.25  and  before  deduction  of  estimated  underwriting  discounts  and
commissions and offering expenses payable by the Company):
 
<TABLE>
<CAPTION>
                                              SHARES PURCHASED           TOTAL CONSIDERATION        AVERAGE
                                         --------------------------  ---------------------------   PRICE PER
                                            NUMBER        PERCENT        AMOUNT        PERCENT       SHARE
                                         -------------  -----------  --------------  -----------  -----------
<S>                                      <C>            <C>          <C>             <C>          <C>
Existing stockholders(1)...............     84,535,395         98%   $  229,087,000         71%    $    2.71
New investors..........................      2,000,000          2        92,500,000         29         46.25
                                         -------------      -----    --------------      -----    -----------
    Total..............................     86,535,395        100%   $  321,587,000        100%
                                         -------------      -----    --------------      -----
                                         -------------      -----    --------------      -----
</TABLE>
 
- ---------
(1) Sales by the Selling Stockholders in the offering will reduce the number  of
    shares  held by  existing stockholders to  81,535,395 shares, or  94% of the
    total number of shares outstanding after the offering, and will increase the
    number of shares held  by new investors  to 5,000,000 shares,  or 6% of  the
    total  number of shares  outstanding after the  offering. See "Principal and
    Selling Stockholders."
 
    The  foregoing  table  assumes  no   exercise  of  the  U.S.   Underwriters'
over-allotment  option and no exercise of stock options outstanding at September
30, 1996. As  of September 30,  1996, (i)  there was an  aggregate of  8,301,650
shares  of Common Stock subject to outstanding options under the Company's Stock
Plans at a  weighted average exercise  price of $22.83  per share and  3,257,663
shares  reserved for  future grants  of options  thereunder and  (ii) there were
1,723,494 shares of Common Stock reserved but unissued under the Company's  1995
Employee Stock Purchase Plan.
 
                                       22
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA
 
    The following table sets forth selected consolidated statement of operations
data  and  balance  sheet  data  for  the  Company.  The  selected  statement of
operations data for each of the five quarters in the period ended March 31, 1996
are derived from the unaudited  condensed consolidated financial statements  not
included  or  incorporated  by  reference  herein.  The  selected  statement  of
operations data for each of the two  quarters in the period ended September  30,
1996  and the selected balance sheet data at September 30, 1996 are derived from
the  unaudited  condensed  consolidated  financial  statements  of  the  Company
incorporated by reference herein. The selected balance sheet data as of December
31,  1995  is  derived  from  the  audited  supplemental  consolidated financial
statements incorporated by  reference herein.  In the opinion  of the  Company's
management,  the unaudited  condensed consolidated  financial statements  of the
Company include  all adjustments,  consisting of  normal recurring  adjustments,
which  the Company considers necessary for  a fair presentation of its financial
position at the end of,  and the results of  its operations for, these  periods.
This   financial  data  should  be  read   in  conjunction  with  the  Company's
Supplemental Consolidated  Financial  Statements  and  the  Notes  thereto,  the
unaudited  condensed  consolidated  financial  statements  and  other  financial
information incorporated  by reference  herein.  See "Incorporation  of  Certain
Documents  by Reference." In November 1995,  the Company entered into a business
combination with  Collabra  in a  transaction  accounted  for as  a  pooling  of
interests.  In April 1996, the Company  entered into a business combination with
InSoft in a transaction accounted for  as a pooling of interests. All  financial
data  of  the  Company for  the  periods  presented has  been  restated  to give
retroactive effect to  the business  combinations with Collabra  and InSoft.  In
April  and May 1996, the Company entered into business combinations with Netcode
and Paper Software, respectively, in  transactions accounted for as poolings  of
interests.  The financial data  for the operations of  Netscape since January 1,
1996 have been restated to give retroactive effect to the business  combinations
with  Netcode  and Paper  Software.  The financial  data  for the  operations of
Netscape has  not been  restated  to give  retroactive  effect to  the  business
combinations with Netcode and Paper Software for any periods prior to January 1,
1996 due to immateriality. All share and per share amounts have been adjusted to
reflect  the two-for-one stock split approved  on January 23, 1996. No dividends
have been  declared or  paid on  the  Common Stock  of Netscape.  The  dividends
declared and paid by InSoft were insignificant.
<TABLE>
<CAPTION>
                                                                                           QUARTER ENDED
                                                                         --------------------------------------------------
                                                                          MARCH 31,    JUNE 30,     SEPT. 30,    DEC. 31,
                                                                            1995         1995         1995         1995
                                                                         -----------  -----------  -----------  -----------
                                                                               (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                                                      <C>          <C>          <C>          <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
Revenues:
  Product revenues.....................................................   $   6,057    $  13,095    $  21,979    $  36,358
  Service revenues.....................................................         388          977        1,329        5,204
                                                                         -----------  -----------  -----------  -----------
    Total revenues.....................................................       6,445       14,072       23,308       41,562
Cost of revenues:
  Cost of product revenues.............................................         431          982        2,639        5,125
  Cost of service revenues.............................................         200          337          380        1,613
                                                                         -----------  -----------  -----------  -----------
    Total cost of revenues.............................................         631        1,319        3,019        6,738
                                                                         -----------  -----------  -----------  -----------
Gross profit...........................................................       5,814       12,753       20,289       34,824
Operating expenses:
  Research and development.............................................       2,827        5,105        7,117       11,792
  Sales and marketing..................................................       4,711        8,224       11,785       18,959
  General and administrative...........................................       2,374        2,612        2,568        3,782
  Merger related charges...............................................      --           --           --            2,033
  Property rights agreement and related charges........................         500       --           --           --
                                                                         -----------  -----------  -----------  -----------
    Total operating expenses...........................................      10,412       15,941       21,470       36,566
                                                                         -----------  -----------  -----------  -----------
Operating income (loss)................................................      (4,598)      (3,188)      (1,181)      (1,742)
Interest income, net...................................................          91          396        1,356        2,751
                                                                         -----------  -----------  -----------  -----------
Income (loss) before income taxes......................................      (4,507)      (2,792)         175        1,009
Provision for income taxes.............................................      --           --           --              498
                                                                         -----------  -----------  -----------  -----------
Net income (loss)......................................................   $  (4,507)   $  (2,792)   $     175    $     511
                                                                         -----------  -----------  -----------  -----------
                                                                         -----------  -----------  -----------  -----------
Net income (loss) per share............................................   $   (0.07)   $   (0.04)   $    0.00    $    0.01
                                                                         -----------  -----------  -----------  -----------
                                                                         -----------  -----------  -----------  -----------
Shares used in computing net loss per share............................      69,915       69,919       80,832       86,965
                                                                         -----------  -----------  -----------  -----------
                                                                         -----------  -----------  -----------  -----------
 
<CAPTION>
 
                                                                          MARCH 31,   JUNE 30,   SEPT. 30,
                                                                            1996        1996       1996
                                                                         -----------  ---------  ---------
 
<S>                                                                      <C>          <C>        <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
Revenues:
  Product revenues.....................................................  $    49,051  $  62,296  $  83,761
  Service revenues.....................................................        7,070     12,710     16,255
                                                                         -----------  ---------  ---------
    Total revenues.....................................................       56,121     75,006    100,016
Cost of revenues:
  Cost of product revenues.............................................        6,811      9,703     10,900
  Cost of service revenues.............................................        1,683      2,325      3,794
                                                                         -----------  ---------  ---------
    Total cost of revenues.............................................        8,494     12,028     14,694
                                                                         -----------  ---------  ---------
Gross profit...........................................................       47,627     62,978     85,322
Operating expenses:
  Research and development.............................................       14,126     17,826     24,211
  Sales and marketing..................................................       25,805     32,506     43,865
  General and administrative...........................................        5,206      6,018      8,286
  Merger related charges...............................................      --           6,100     --
  Property rights agreement and related charges........................      --          --         --
                                                                         -----------  ---------  ---------
    Total operating expenses...........................................       45,137     62,450     76,362
                                                                         -----------  ---------  ---------
Operating income (loss)................................................        2,490        528      8,960
Interest income, net...................................................        2,431      1,462      1,592
                                                                         -----------  ---------  ---------
Income (loss) before income taxes......................................        4,921      1,990     10,552
Provision for income taxes.............................................        1,332      1,084      2,895
                                                                         -----------  ---------  ---------
Net income (loss)......................................................  $     3,589  $     906  $   7,657
                                                                         -----------  ---------  ---------
                                                                         -----------  ---------  ---------
Net income (loss) per share............................................  $      0.04  $    0.01  $    0.09
                                                                         -----------  ---------  ---------
                                                                         -----------  ---------  ---------
Shares used in computing net loss per share............................       85,003     87,937     87,883
                                                                         -----------  ---------  ---------
                                                                         -----------  ---------  ---------
</TABLE>
<TABLE>
<CAPTION>
                                                                                                           DECEMBER 31,
                                                                                                               1995
                                                                                                           -------------
<S>                                                                                                        <C>
                                                                                                                (IN
                                                                                                            THOUSANDS)
CONSOLIDATED BALANCE SHEET DATA:
Working capital..........................................................................................    $ 133,052
Total assets.............................................................................................      231,154
Deferred revenues........................................................................................       30,032
Long-term obligations, net of current portion............................................................        1,198
Stockholders' equity.....................................................................................      177,387
 
<CAPTION>
                                                                                                           SEPTEMBER 30,
 
                                                                                                                1996
 
                                                                                                           --------------
 
<S>                                                                                                        <C>
 
CONSOLIDATED BALANCE SHEET DATA:
Working capital..........................................................................................    $   70,571
 
Total assets.............................................................................................       331,748
 
Deferred revenues........................................................................................        75,126
 
Long-term obligations, net of current portion............................................................           659
 
Stockholders' equity.....................................................................................       199,004
 
</TABLE>
 
                                       23
<PAGE>
                                    BUSINESS
 
OVERVIEW
 
    Netscape  is  a leading  provider of  open software  for linking  people and
information over  intranets and  the Internet.  Netscape develops,  markets  and
supports  a broad  suite of enterprise  server and  client software, development
tools and  commercial  applications to  create  a single  shared  communications
platform  for network-based applications. Netscape software is based on industry
standard protocols and therefore  can be deployed across  a variety of  computer
operating  systems, hardware platforms  and databases and  can be interconnected
with  traditional   client/server   applications.  Using   Netscape   solutions,
organizations  can extend their internal information systems and applications to
geographically dispersed  facilities as  well  as to  third party  partners  and
customers.  In addition, Netscape's products allow individuals and organizations
to access information and  to execute transactions across  the Internet such  as
the buying and selling of information, software, merchandise and publications.
 
    Netscape  released its first product, Navigator 1.0, in December 1994, which
offered an easy to use graphical user interface for browsing the World Wide  Web
(the  "Web"). Since  that time, the  Company has become  increasingly focused on
offering user and network services  for use in intranet applications,  including
features with e-mail and graphics. The Company currently offers a broad suite of
software  products and tools, targeted primarily at corporate intranets, for use
in a variety  of information sharing,  network management and  commerce-enabling
applications.  Netscape currently has over  1,500 corporate customers, including
92 of the Fortune 100  companies. 92 of the  Fortune 100 companies use  Netscape
for intranets or Internet solutions.
 
    To  reach a diverse and worldwide customer base, Netscape delivers its suite
of products and  services through  multiple distribution  channels. The  Company
offers  its products via  a direct sales  force, telesales, and  the Internet as
well as  through  resellers  such  as OEMs,  VARs  and  software  retailers.  To
accelerate  the acceptance of the Company's  products, Netscape has entered into
reseller agreements  with leading  telecommunications and  technology  companies
with  complementary  resources.  These companies  include,  among  others, AT&T,
Apple, British  Telecom,  Compaq,  Deutsche Telekom,  Digital,  France  Telecom,
Hewlett-Packard,  IBM,  Informix, Novell,  Olivetti, Siemens,  Silicon Graphics,
Sybase and Sun.
 
INDUSTRY BACKGROUND
 
    In today's increasingly competitive business environment, organizations seek
to leverage their  existing investments  in information  technology and  provide
access  to network resources  and applications across  the enterprise. Disparate
computer operating systems, hardware  platforms and databases have  historically
limited the ability of these organizations to share information most effectively
across the enterprise. Intranets have provided simple services such as messaging
and  publishing to  network users,  and have  begun to  connect closed operating
systems, databases, applications and networks over a common platform. These open
standards-based  intranets  are  designed  to  permit  user  services  such   as
information  sharing, application access and  enterprise calendaring, as well as
network services  such as  network management  and security,  to operate  across
heterogeneous environments.
 
    According  to  Forrester  Research,  an  independent  market  research group
("Forrester"), the intranet and Internet market opportunity is significant. In a
July 1996 report, Forrester reported that approximately 96% of the Fortune  1000
companies  either  have or  are  building an  intranet  and estimated  that $8.5
billion will be spent on intranet and Internet software in the year 1999.
 
RECENT DEVELOPMENTS
 
    PLANNED PRODUCTS AND RELEASES
 
    In October  1996, the  Company announced  a matched  server/client  solution
focused  on the intranet  market as an  upgrade and extension  of its server and
client products. Netscape SuiteSpot  3.0, an upgrade  to Netscape SuiteSpot  2.0
which  is planned  to be commercially  available in  the first half  of 1997, is
designed to  be an  integrated suite  of server  software that  offers  advanced
messaging and groupware functionality,
 
                                       24
<PAGE>
provides  an open foundation for the  creation of network-based applications and
enables flexible content  management. Netscape Communicator  4.0, an upgrade  to
Netscape  Navigator which is  planned to be commercially  available in the first
half of 1997, is  designed to be  a componentized suite  of client software  for
open  HTML-based  e-mail, groupware,  authoring,  calendaring and  Web browsing.
Together, the Netscape SuiteSpot 3.0 and Communicator 4.0 solution are  designed
to  offer  a  matched feature  approach  enabling organizations  to  use e-mail,
groupware and other enterprise applications across an open network.
 
                [Insert Figure: Matched Client/Server Solution]
 
MATCHED CLIENT/SERVER SOLUTION:
 
    This figure  depicts the  Company's recently  announced matched  server  and
client solution and how the strategy to componentize each piece of functionality
creates  seamless integration between client  and server. Calendar functionality
in the Communicator, for  example, gets matched  with calendar functionality  in
the SuiteSpot 3.0 New Platform any application model:
 
        NETSCAPE SUITESPOT 3.0.
 
    The Company's next-generation server software suite will be comprised of ten
server  and tool  products for building  corporate intranets.  Together with the
announced Netscape Communicator  client, Netscape SuiteSpot  3.0 is expected  to
provide  enterprise  customers  with  an integrated  solution  for  building and
maintaining Web  sites,  open  e-mail, publishing  and  groupware  solutions  on
intranets.  In  addition,  Netscape SuiteSpot  3.0  is designed  to  support the
Netscape  ONE  framework  that   allows  developers  to  build   cross-platform,
network-based applications. Netscape SuiteSpot 3.0 is planned to be commercially
available  in the first half of 1997. Below  is a description of each server and
tool that collectively comprise Netscape SuiteSpot 3.0.
 
        NETSCAPE ENTERPRISE SERVER 3.0.   This enterprise server is designed  to
be the platform that will enable users to share, locate and publish information.
Among  the  features the  Company plans  to  include are  the ability  to manage
documents in a  variety of formats,  including Microsoft Office  and Adobe  PDF,
full-text search capability, agent technology, custom views, access controls and
document  control with versioning. Netscape Enterprise Server 3.0, an upgrade of
Netscape's  currently  shipping  Enterprise  Server   2.0,  is  planned  to   be
commercially available as a standalone product in the first half of 1997.
 
        NETSCAPE  MESSAGING SERVER 3.0.   This server is  designed to expand its
native support  of  Internet  standards  and is  designed  to  extend  beyond  a
traditional  client/server messaging architecture  through interoperability with
native Internet and proprietary LAN-based  mail systems. Among the features  the
Company plans to include are LDAP directory services support, offline and mobile
user support, tools for
 
                                       25
<PAGE>
migration  from  proprietary messaging  solutions  and IMAP4  and  POP3 support.
Netscape Messaging  Server 3.0,  an  upgrade to  Netscape  Mail Server  2.0,  is
planned  to be commercially available as a  standalone product in the first half
of 1997.
 
        NETSCAPE COLLABRA SERVER 3.0.  This open and secure discussion server is
designed to allow group-to-group collaboration and knowledge-sharing among teams
both inside and outside an organization. Among the features the Company plans to
include are support for full-text search across all discussion forums,  enhanced
encryption,  single point administration  and advanced replication capabilities.
Netscape Collabra Server  3.0, an upgrade  to Netscape Collabra  Server 2.1,  is
planned  to be commercially available as a  standalone product in the first half
of 1997.
 
        NETSCAPE CALENDAR SERVER 1.0.   This server is  designed to be the  open
standards-based  server for  calendaring and  scheduling across  the enterprise.
Among the features the Company plans  to include are access controls to  protect
data  and enterprise scalability. Netscape Calendar  Server 1.0 is planned to be
commercially available as a standalone product in the first half of 1997.
 
        NETSCAPE MEDIA SERVER  1.0.   This server is  designed to  be the  audio
broadcasting  and publishing extension to  the Netscape Enterprise Server. Among
the features  the Company  plans to  include are  the ability  to deliver  audio
across a TCP/IP network, integration of audio with text and graphics and support
for  industry-standard protocols and file formats including RTSP. Netscape Media
Server 1.0 is planned  to be commercially available  as a standalone product  in
the first half of 1997.
 
        NETSCAPE CATALOG SERVER 1.0.  This is the automated search and discovery
server  for  creating,  managing  and maintaining  an  online  catalog  of files
residing on  enterprise intranets  and  the Internet.  This server  features  an
automated  catalog that  is easy  to manage  and customize  with the  ability to
catalog in  multiple file  formats.  Netscape Catalog  Server 1.0  is  currently
available  in  beta version  and is  planned  to be  commercially released  as a
standalone product by the end of 1996.
 
        NETSCAPE DIRECTORY SERVER 1.0.  This  is the server for managing  "white
pages"   information  such  as  names,   e-mail  addresses,  phone  numbers  and
certificates. Its  features include  universal access  to directory  information
through  LDAP, support  for distributed  searches, replication  capabilities and
safeguarding of directory information using  both access control lists and  SSL.
Netscape  Directory Server  1.0 is  currently available  in beta  version and is
planned to be commercially released by the end of 1996.
 
        NETSCAPE CERTIFICATE SERVER 1.0.   This server enables organizations  to
issue, sign and manage public-key certificates. Its features include single user
login,  SSL support and software signing using the industry-standard RSA digital
signature algorithm. Netscape Certificate Server  1.0 is currently available  in
beta  version and is planned to be commercially released as a standalone product
in the first half of 1997.
 
        NETSCAPE PROXY SERVER  2.5.  This  server is designed  to replicate  and
filter  access to content on an intranet or the Internet. Among the features the
Company plans to include  are access and control  points for encrypted  traffic,
automatic proxy configuration and replication on demand and on command. Netscape
Proxy  Server 2.5,  an upgrade to  Netscape Proxy  Server 2.0, is  planned to be
commercially available as a standalone product in the first half of 1997.
 
        NETSCAPELIVEWIRE/NETSCAPE LIVEWIRE PRO.   These are visual tools  suites
designed  for  managing Web  sites  and creating  online  applications. Features
include the  ability  to  create  and  import  Web  page  content  with  a  site
downloader,  a JavaScript  compiler and interoperability  with Oracle, Informix,
Sybase and ODBC  databases. Both Netscape  LiveWire 1.01 and  LiveWire Pro  1.01
were commercially released in June 1996.
 
        NETSCAPE COMMUNICATOR
 
    The  Company's next  generation client product,  Netscape Communicator, will
aggregate a set  of features for  the user  to share and  access information  on
intranets  or  the Internet.  Additionally, the  Company announced  the Netscape
Communicator Professional Edition, which is expected to include calendaring  and
 
                                       26
<PAGE>
centralized  management  capabilities.  The Netscape  Communicator  and Netscape
Communicator Professional  are  scheduled to  enter  beta phase  in  the  fourth
quarter  of 1996 and planned  to be commercially available  in the first half of
1997. Below  is  a description  of  each component  that  collectively  comprise
Netscape Communicator.
 
        NETSCAPE  NAVIGATOR 4.0.  This component is designed to enable access to
information and network  applications on  intranets and the  Internet using  the
intuitive  Netscape Navigator interface. Among the features the Company plans to
include are  an  improved  user  interface,  JavaScript  style  sheets,  layers,
improved  Java  performance and  platform  support, multiple  user  profiles and
embedded object support.  The Netscape  Navigator 4.0 component  is designed  to
offer  a point-and-click graphical user interface that enables users to navigate
the Internet's  vast  array of  network  resources. Netscape  Navigator  4.0  is
planned  to be an  extension of the browser  functionality in Netscape Navigator
3.0.
 
        NETSCAPE MESSENGER.   This  component is  designed to  enable  corporate
e-mail  built  on  open  standards.  Among  the  features  to  be  included  are
integration with Netscape Composer to create HTML mail with embedded objects and
images, S/MIME  encrypted  and  digitally signed  messages,  LDAP  Internet-wide
directory  technology, additional support for IMAP4, POP3 and SMTP/MIME, message
filters,  an  integrated  spelling  checker,  hierarchical  folders  and  search
capabilities.  Netscape Messenger will be an extension of the mail functionality
in Netscape Navigator 3.0.
 
        NETSCAPE COLLABRA.   This  component is  designed to  enable  enterprise
discussion  groups based on  Internet standards. Among  the features the Company
plans to include are NNTP support for threaded discussion groups, HTML  content,
forum  names for discussions, access controls for private discussions, searching
across all forums and offline reading and posting.
 
        NETSCAPE COMPOSER.  This component is designed to be an HTML editor  for
Web pages, e-mail and discussion groups. Among the features the Company plans to
include  are one-button publishing, formatting  which includes fonts and styles,
drag-and-drop images,  an  extensible  editor  plug-in  API  and  FTP  and  HTTP
publishing  support. Netscape  Composer is  designed to  be an  extension of the
authoring functionality in Netscape Navigator Gold.
 
        NETSCAPE  CONFERENCE.    This  component  is  designed  to  enable  live
connection   of  people   and  information  with   Internet  telephones,  shared
whiteboards and file transfer. Among the  features the Company plans to  include
are  audio conferencing, voicemail, collaborative browsing, full-duplex echo and
silence suppression,  H.323  support  and integration  with  Netscape  Messenger
address book. Netscape Conference is designed to be an extension of the Netscape
CoolTalk plug-in for Netscape Navigator 3.0.
 
        NETSCAPE  CALENDAR.   This  component is  designed to  enable enterprise
calendaring and scheduling. Among the features the Company plans to include  are
local  and  remote server  searching, schedule  delegation, offline  support and
drag-and-drop events. Netscape  Calendar will  be bundled  exclusively with  the
Netscape Communicator Professional Edition.
 
        NETSCAPE  AUTOADMIN.  This  component is designed  to enable centralized
management to install, deploy and configure the Netscape Communicator. Among the
features the Company plans to include are automatic download and installation of
new Netscape Communicator plug-ins and components and the capability to restrict
the downloading of such components to those authorized. Netscape AutoAdmin  will
be  bundled  exclusively with  the  Netscape Communicator  Professional Edition.
Netscape  AutoAdmin  is  designed  to  be  an  extension  of  the  administrator
functionality of the Netscape Dial-Up Navigator 3.0.
 
    The  foregoing section  contains statements regarding  the Company's planned
products and enhancements, including planned features and release dates of  such
planned products and enhancements. To the extent that such statements are deemed
to  be  forward-looking statements  within  the meaning  of  Section 27A  of the
Securities Act and Section 21E  of the Exchange Act,  they are subject to  risks
and  uncertainties. Actual results may  differ materially from those anticipated
and described in the foregoing section. In particular, the Company's ability  to
release such planned products and enhancements in a timely manner, or at all, or
the
 
                                       27
<PAGE>
ability  of such planned  products or enhancements  to achieve market acceptance
may be materially  adversely affected  by a  variety of  factors, including  any
delay  in releasing  such planned products  or enhancements or  any technical or
other problems inherent in such planned products or enhancements or the adoption
of  competing  standards  and  other  factors  set  forth  in  "Risk   Factors",
particularly the risk factor entitled "New Product Development and Technological
Change" and elsewhere in this Prospectus.
 
    RECENT PRICING ANNOUNCEMENTS
 
    In  conjunction with  the announcement of  the Company's  matched server and
client solution, the Company announced a  new pricing program that reflects  the
enterprise  scalability  of the  Company's products.  The Company's  new pricing
program will  make its  Netscape  SuiteSpot 3.0  and Netscape  Communicator  4.0
products  available on  a per seat  basis. In addition,  the Netscape Messaging,
Netscape Collabra,  Netscape Directory  and Netscape  Calendar servers  will  be
available as standalone products with a certain number of client access licenses
("CALs").  As  customers  increase the  number  of users  to  prescribed levels,
additional incremental license charges will  apply, subject to volume and  other
discounts. This pricing model is noted in the table below.
 
                       [Insert Figure: Netscape License]
 
NETSCAPE LICENSE
 
    This  figure depicts  the Company's pricing  model for Per  Seat pricing for
customer Seats above 500.
 
    The Company's server and client product lines account for the vast  majority
of  the Company's total revenues. From time to time, the Company has in the past
changed, and  may  in  the future  change,  the  pricing of  its  products.  The
Company's  recent change  in pricing  announced in  October 1996  and any future
pricing changes  could  materially  adversely  affect  sales  of  the  Company's
products  and consequently  materially adversely affect  the Company's business,
operating results and financial condition.
 
    NETSCAPE ONE
 
    In  July  1996,  Netscape  announced  the  creation  of  its  Open   Network
Environment ("Netscape ONE"), which provides a framework for developers to build
cross-platform,  network-based applications. Netscape ONE is intended to promote
a standards-based approach to managing distributed objects on the network and to
serve as an alternative  to platform-specific application development.  Netscape
ONE  incorporates technologies  such as  Java Script  1.1, HTTP  and HTML, among
others, and, in combination with CORBA, permits developers to write  distributed
applications  and  integrate information  systems running  on  a broad  range of
operating systems. More than 50 companies have announced their intent to support
and develop
 
                                       28
<PAGE>
applications using Netscape ONE.  These companies include software  applications
and  tools vendors such as: Adobe  Systems Incorporated ("Adobe"), Autodesk Inc.
("Autodesk"), Borland International Inc. ("Borland"), Digital,  Hewlett-Packard,
Informix,  Intuit Inc., Lotus, Macromedia Inc. ("Macromedia"), Silicon Graphics,
Symantec Corporation  and  Sun. The  Company  has  posted the  source  code  for
Netscape   ONE,  a  comprehensive  whitepaper,   and  a  Netscape  ONE  Software
Development Kit  ("SDK")  on  its  Internet Web  site  in  order  to  facilitate
third-party acceptance of the Netscape ONE approach.
 
    NETSCAPE APPFOUNDRY
 
    In  early  September  1996,  Netscape announced  the  AppFoundry  Program to
demonstrate applications developed using the Netscape ONE framework.  Initially,
the  AppFoundry Program included over 20  third party business applications that
could be downloaded  from the  Netscape Internet Web  site at  no charge.  These
applications  can be deployed  and customized by  an enterprise, and demonstrate
the speed at  which applications can  be built using  an open  Internet-standard
platform.  Applications  include programs  for  internal purchasing,  travel and
expense  reporting,  job  posting  and  applicant  processing  and  sales  trend
analysis.  The combination of Netscape ONE  and AppFoundry create an environment
where the enterprise customer can enable communication and share information and
applications within its own departments as well as with its third party partners
and customers through a single common intranet infrastructure.
 
    [Insert Figure(s): The Old vs. The New Platform and Applications Model]
 
    This figure depicts an intranet as enabled by the Company's software.  Using
an  open layer of software as a platform, the enterprise customer can facilitate
communication and information  sharing between internal  departments as well  as
customer and strategic partners.
 
    Additionally, the Company launched Netscape AppFoundry Online, which holds a
collection  of downloadable  applications, maintains  a "What's  New" section to
keep developers up to date on  the Company's announcements in both the  Netscape
ONE and AppFoundry space, and hosts online question and answer discussion forums
for  IS professionals  and corporate developers.  Since September,  more than 10
additional applications have  been added  to the  AppFoundry showcase  including
work from Arbor Software, Dun and Bradstreet and Scopus Inc.
 
    ACQUISITIONS AND JOINT VENTURES
 
    In  April 1996, the Company entered into a business combination with InSoft,
a  privately-held  company  that   provides  network-based  communications   and
collaborative  multimedia software for the enterprise. Netscape purchased all of
the outstanding capital stock and assumed  all of the outstanding stock  options
of
 
                                       29
<PAGE>
InSoft.  The business combination  was accounted for as  a pooling of interests.
Using InSoft's technology as  a foundation, the  Company has announced  Netscape
LiveMedia  and Netscape Media  Server, a standards-based  framework for bringing
real-time audio and video to the Netscape open software platform.
 
    In May 1996,  the Company  entered into  a business  combination with  Paper
Software,  a privately-held company  that provides distributed three-dimensional
graphics and maker of WebFX  Virtual Reality Markup Language ("VRML")  software.
Netscape  purchased all of the outstanding  capital stock of Paper Software. The
business combination was accounted for as  a pooling of interests. Netscape  has
integrated  Paper Software's core technology  into Netscape Navigator and, using
Paper Software's core technology as a foundation, has announced Netscape Live3D,
technology that enables  industry-standard VRML graphics  to be integrated  into
the Netscape software platform.
 
    In May 1996, the Company entered into a business combination with Netcode, a
privately-held  company  that created  a  Java-based object  toolkit  and visual
interface builder for  developing Java applications.  Netscape purchased all  of
the  outstanding capital  stock and  assumed all  of the  outstanding options of
Netcode. The business combination was accounted  for as a pooling of  interests.
Netscape  develops and  markets Netcode's products  as part of  Netscape ONE and
intends to integrate Netcode's core technology into future Netscape products.
 
    In April 1996, the Company entered into a joint venture with GE  Information
Services  ("GEIS") to form Actra Business Systems L.L.C. that intends to develop
and market software for Internet-based business-to-business electronic commerce.
 
    In August  1996, the  Company  entered into  a  joint venture  called  Navio
Communications,  Inc.  ("Navio"), an  independent  Internet software  company in
which Netscape has  an equity position.  Navio plans to  deliver core,  scalable
technology  for the Netscape Navigator for a wide-variety of consumer and non-PC
products such as televisions,  telephones, set-top boxes,  game players and  the
new breed of network computers and information appliances.
 
    The Company will continue to consider acquisitions, investments or strategic
alliances that it believes can complement its overall business strategy.
 
                                       30
<PAGE>
                                   MANAGEMENT
 
EXECUTIVE OFFICERS AND DIRECTORS
 
    The  executive officers  and directors  of the  Company, and  their ages and
positions as of September 30, 1996, are as follows:
 
<TABLE>
<CAPTION>
                       NAME                            AGE                        POSITION(S)
- --------------------------------------------------  ---------  --------------------------------------------------
<S>                                                 <C>        <C>
James H. Clark....................................         52  Chairman of the Board
James L. Barksdale................................         53  President, Chief Executive Officer and Director
Marc L. Andreessen................................         25  Senior Vice President, Technology and Director
Noreen G. Bergin..................................         36  Vice President and Corporate Controller
Peter L.S. Currie.................................         40  Senior Vice President and Chief Financial Officer
Larry K. Geisel...................................         55  Senior Vice President, Information Systems and
                                                                Chief Information Officer
Eric A. Hahn......................................         36  Senior Vice President and General Manager of the
                                                                Server Product Division(1)
Michael J. Homer..................................         38  Senior Vice President, Marketing
Roberta R. Katz...................................         48  Senior Vice President, General Counsel and
                                                                Secretary
Kandis Malefyt....................................         42  Senior Vice President, Human Resources
Conway Rulon-Miller...............................         45  Senior Vice President, Sales and Field Operations
Richard M. Schell.................................         46  Senior Vice President and General Manager of the
                                                                Client Product Division(1)
James C.J. Sha....................................         46  Senior Vice President and General Manager,
                                                                Integrated Applications
L. John Doerr(2)..................................         45  Director
John E. Warnock(2)................................         56  Director
</TABLE>
 
- ---------
(1) Title effective November 1, 1996
(2) Member of the Audit and Compensation Committees
 
    Dr. Clark  co-founded  the Company  in  April 1994  and  has served  as  its
Chairman  of the  Board since  its inception. From  inception of  the Company to
January 1995, Dr. Clark served as  the President and Chief Executive Officer  of
the Company. From 1981 to 1994, Dr. Clark was Chairman of the Board of Directors
of  Silicon Graphics, Inc.  ("Silicon Graphics"), a  computer systems company he
founded in 1981.  Dr. Clark also  served as Chief  Technical Officer of  Silicon
Graphics from 1981 to 1987. Prior to founding Silicon Graphics, Dr. Clark was an
associate  professor at  Stanford University. Dr.  Clark holds a  Ph.D. from the
University of Utah and an M.S. and a B.S. from the University of New Orleans.
 
    Mr. Barksdale joined  the Company  in January  1995 as  President and  Chief
Executive  Officer. He  has served  as a director  of the  Company since October
1994. From January 1992 to January  1995, Mr. Barksdale served as President  and
Chief  Operating Officer, and, as of September 1994, Chief Executive Officer, of
AT&T  Wireless   Services  (formerly,   McCaw  Cellular   Communications,   Inc.
(collectively, "McCaw")), a cellular telecommunications company. From April 1983
to January 1992, Mr. Barksdale served as Executive
 
                                       31
<PAGE>
Vice  President  and  Chief  Operating Officer  of  Federal  Express Corporation
("Federal Express") an express package delivery company. From 1979 to 1983,  Mr.
Barksdale  served as Chief Information Officer of Federal Express. Mr. Barksdale
also held  various management  positions, including  Chief Information  Officer,
with  Cook Industries Inc.,  during the mid-1970s  and was employed  by IBM from
1965 to 1972. He holds a B.A. from the University of Mississippi. Mr.  Barksdale
serves  as a director of 3Com  Corporation, Harrah's Entertainment, Inc., Robert
Mondavi Corp. and @Home Corporation.
 
    Mr. Andreessen co-founded the Company in April 1994. He currently serves  as
Senior  Vice President, Technology and has been  a director of the Company since
September 1994. He received a B.S.  from the University of Illinois in  December
1993, where he co-authored the original NCSA Mosaic Web browser.
 
    Ms.  Bergin  joined  the Company  in  November  1995 as  Vice  President and
Corporate Controller. From November 1991 to November 1995, Ms. Bergin served  as
Vice   President,  Finance   and  Corporate   Controller  of   Frame  Technology
Corporation, a document publishing software firm. Prior to that time, she served
as Corporate  Controller  of Boole  &  Babbage, Inc.,  a  mainframe  performance
software  company  for five  years. Ms.  Bergin  holds a  B.A. from  Santa Clara
University.
 
    Mr. Currie joined the Company as Vice President and Chief Financial  Officer
in  April 1995 and  was elected to  Senior Vice President  in January 1996. From
April 1989 to March 1995, Mr. Currie held various management positions at McCaw,
including Executive  Vice  President and  Chief  Financial Officer,  and  as  of
February  1993, Executive Vice President of  Corporate Development. From 1982 to
1989, he held various positions at Morgan Stanley & Co. Incorporated. Mr. Currie
holds an M.B.A. from Stanford University and a B.A. from Williams College.
 
    Mr. Geisel  joined the  Company  in March  1996  as Senior  Vice  President,
Information Systems and Chief Information Officer. From June 1994 to March 1996,
Mr.  Geisel served  as Executive Vice  President, Global  Solutions Delivery for
Xerox Corporation ("Xerox"), an office equipment company. From May 1993 to  June
1994,  Mr. Geisel was a consultant. From September 1992 to June 1993, Mr. Geisel
served as President and Chief Executive Officer of White Pine Software, Inc.,  a
desktop connectivity software company. From February 1987 to September 1992, Mr.
Geisel  was  President and  Chief  Executive Officer  of  IIS Inc.,  a software,
systems and information services  firm he founded in  1987. Mr. Geisel holds  an
M.S.E. and a B.S.E. from Arizona State University.
 
    Mr.  Hahn joined the Company in  November 1995 as Vice President, Enterprise
Technology,  in  connection  with  the  Company's  acquisition  of  Collabra,  a
collaborative computing software company, where Mr. Hahn served as President and
Chief  Executive  Officer from  February  1993 to  November  1995. Mr.  Hahn was
elected to Senior Vice President in January 1996 and in October 1996 was elected
to Senior Vice  President and General  Manager of the  Server Product  Division.
From September 1992 to February 1993, Mr. Hahn was employed by Merrill, Pickard,
Anderson  & Eyre,  a venture  capital firm.  From June  1990 to  August 1992, he
served as Vice  President, General  Manager of  the cc:Mail  Division of  Lotus.
Prior  to that  time, he  served as Vice  President and  General Manager, Server
Products Division at Convergent Technologies/Unisys Corporation. Mr. Hahn  holds
a B.S. from the Worcester Polytechnic Institute.
 
    Mr.  Homer joined the  Company in October 1994  as Vice President, Marketing
and was elected to  Senior Vice President  in January 1996.  From April 1994  to
October  1994, Mr. Homer was  a consultant. From August  1993 to April 1994, Mr.
Homer served  as  Vice President,  Engineering  at EO  Corporation,  a  handheld
computer  manufacturer, and  from July  1991 to  July 1993,  Mr. Homer  was Vice
President, Marketing at  GO Corporation,  a pen-based software  company. He  had
previously  been Director of  Product Marketing at Apple,  where he held various
technical and marketing positions from 1982 through 1991. Mr. Homer holds a B.S.
from the University of California, Berkeley.
 
    Ms. Katz joined the Company in  May 1995 as Vice President, General  Counsel
and  Secretary and was  elected to Senior  Vice President in  January 1996. From
March 1993 until joining the Company,  Ms. Katz served as Senior Vice  President
and  General  Counsel  of McCaw.  In  addition,  from March  1992  until joining
 
                                       32
<PAGE>
the Company, Ms. Katz served as Senior Vice President and General Counsel of LIN
Broadcasting Corporation, a subsidiary of McCaw.  Prior to March 1992, Ms.  Katz
was  in private legal  practice, most recently as  a partner in  the law firm of
Heller, Ehrman,  White  & McAuliffe.  Ms.  Katz is  a  Fellow of  the  Discovery
Institute  and serves  as a  member of  the Board  of Directors  of the Software
Publishers Association. Ms. Katz holds a J.D. from the University of  Washington
School  of  Law,  a  Ph.D.  from Columbia  University,  an  M.A.  from  New York
University and a B.A. from Stanford University.
 
    Ms. Malefyt joined  the Company in  December 1994 as  Vice President,  Human
Resources  and was elected  to Senior Vice  President in January  1996. From May
1988 to December  1994, Ms.  Malefyt served as  a Director,  Human Resources  at
Silicon  Graphics.  Prior to  that  time, she  served  as Vice  President, Human
Resources at ISI. Ms. Malefyt holds an  M.A. from Antioch University and a  B.A.
from Harding University.
 
    Mr. Rulon-Miller joined the Company in October 1994 as Vice President, Sales
and  Field Operations and was elected to  Senior Vice President in January 1996.
From December 1992  to October 1994,  Mr. Rulon-Miller was  President and  Chief
Executive  Officer  of  Software  Alliance  Corp.,  a  software  company  and  a
subsidiary of  Teknekron  Communications  Systems  Inc.  From  October  1986  to
December  1992, he served as Vice President, Sales, of North American Operations
of NeXT Software, Inc., a software company. Mr. Rulon-Miller has previously held
management positions at  Tandem Computers,  Inc., American  Express Company  and
IBM. Mr. Rulon-Miller holds a B.A. from Princeton University.
 
    Dr. Schell joined the Company in October 1994 as Vice President, Engineering
and  was elected to Senior Vice President  in January 1996. In October 1996, Dr.
Schell was elected to the position of Senior Vice President and General  Manager
of  the Client Product Division.  From January 1993 to  October 1994, Dr. Schell
was  employed  by  Symantec,   a  software  company,   most  recently  as   Vice
President/General  Manager of the Central Point Division (formerly Central Point
Software, Inc.). From March 1989 to December 1992, he served as Vice  President,
Languages and dBase at Borland, a database software company. Prior to that time,
Dr.  Schell held various management positions at Sun and Intel. Dr. Schell holds
a Ph.D., an M.S. and a B.A. from the University of Illinois.
 
    Mr. Sha joined  the Company  in August 1994  as Vice  President and  General
Manager,  Integrated Applications  and was elected  to Senior  Vice President in
January 1996. From June 1990 to August  1994, Mr. Sha served as Vice  President,
Unix  Division at Oracle,  a database software  company. From June  1986 to June
1990, he served as Vice President/General Manager, Advanced Systems Division  at
Wyse  Technology,  Inc.  Mr.  Sha  holds  an  M.S.E.E.  from  the  University of
California, Berkeley, an M.B.A. from Santa Clara University and a B.S.E.E.  from
National Taiwan University.
 
    Mr. Doerr has been a director of the Company since September 1994. Mr. Doerr
has  been  a general  partner of  Kleiner  Perkins Caufield  & Byers,  a venture
capital firm, since September 1980. Prior to joining Kleiner Perkins Caufield  &
Byers,  Mr. Doerr  was employed  by Intel for  five years.  He is  a director of
Intuit, Macromedia, Platinum Software,  Inc. and Shiva  Corporation, as well  as
several  private companies. He holds an  M.B.A. from the Harvard Business School
and an M.E.E. and a B.S.E.E. from Rice University.
 
    Dr. Warnock has been a director of the Company since April 1995. Dr. Warnock
is a founder  of Adobe, a  software company, and  has been its  Chairman of  the
Board  since  1989. He  has  served as  Adobe's  Chief Executive  Officer  and a
director since October  1982 and was  its President from  December 1982  through
March  1989. Prior to founding Adobe, Dr. Warnock was principal scientist of the
Imaging Sciences  Laboratory at  Xerox's  Palo Alto  Research  Center. He  is  a
director  of  Adobe,  Evans  & Sutherland  Computer  Corporation  and  Red Brick
Systems, Inc. Dr. Warnock holds a Ph.D., an M.S. and a B.S. from the  University
of Utah.
 
                                       33
<PAGE>
                       PRINCIPAL AND SELLING STOCKHOLDERS
 
    The  following  table sets  forth certain  information  with respect  to the
beneficial ownership of the Company's Common Stock as of September 30, 1996  and
as  adjusted to  reflect the sale  of Common  Stock offered hereby  for (i) each
person or entity who is known by the Company to beneficially own more than 5% of
the outstanding  Common  Stock  of  the Company,  (ii)  each  of  the  Company's
directors, (iii) the Company's Chief Executive Officer and each of the four most
highly  compensated executive officers  during the year  ended December 31, 1995
(the "Named Officers"), (iv) each Selling Stockholder, and (v) all directors and
executive officers of the Company as a group:
<TABLE>
<CAPTION>
                                                        SHARES BENEFICIALLY OWNED              SHARES BENEFICIALLY OWNED
                                                          PRIOR TO OFFERING(1)       SHARES        AFTER OFFERING(1)
                                                        -------------------------    BEING     -------------------------
DIRECTORS, OFFICERS AND 5% STOCKHOLDERS                    NUMBER       PERCENT     OFFERED       NUMBER       PERCENT
- ------------------------------------------------------  ------------  -----------  ----------  ------------  -----------
<S>                                                     <C>           <C>          <C>         <C>           <C>
James H. Clark(2) ....................................    15,915,000       18.8%       --        15,915,000       18.4%
 c/o Netscape Communications Corporation
 501 East Middlefield Road
 Mountain View, CA 94043
L. John Doerr(3) .....................................     8,907,009       10.5        --         8,907,009       10.3
 Kleiner Perkins Caufield & Byers
 4 Embarcadero Center, Suite 3520
 San Francisco, CA 94111
James L. Barksdale(4) ................................     5,232,000        6.2        --         5,232,000        6.1
 c/o Netscape Communications Corporation
 501 East Middlefield Road
 Mountain View, CA 94043
John E. Warnock(5)....................................     1,797,163        2.1       888,890       908,273        1.0
Marc L. Andreessen(6).................................     1,501,220        1.8        --         1,501,220        1.7
James C.J. Sha(7).....................................     1,200,776        1.4        --         1,200,776        1.4
Richard M. Schell(8)..................................       623,748       *           --           623,748       *
Michael J. Homer(9)...................................       577,322       *           --           577,322       *
Conway Rulon-Miller(10)...............................       487,100       *           --           487,100       *
All directors and executive officers as a group (15
 persons)(11).........................................    37,706,583       44.6       888,890    36,795,475       42.5
 
<CAPTION>
 
SELLING STOCKHOLDERS
- ------------------------------------------------------
<S>                                                     <C>           <C>          <C>         <C>           <C>
Adobe Systems Incorporated(5).........................     1,797,163        2.1       888,890       908,273        1.0
TCI Netscape Holdings, Inc............................     1,777,780        2.1     1,022,218       755,562       *
Knight-Ridder Investment Company......................       888,892        1.1       888,892       --           --
The Hearst Corporation................................       888,892        1.1       200,000       688,892       *
</TABLE>
 
- ---------
*   Less than 1%.
 
(1) The number  and percentage  of shares  beneficially owned  is determined  in
    accordance  with Rule 13d-3 of the Exchange  Act, and the information is not
    necessarily indicative of beneficial ownership for any other purpose.  Under
    such  rule,  beneficial  ownership  includes  any  shares  as  to  which the
    individual has sole or shared voting power or investment power and also  any
    shares which the individual has the right
 
                                       34
<PAGE>
    to  acquire within 60 days of September 30, 1996 through the exercise of any
    stock option or other  right. Unless otherwise  indicated in the  footnotes,
    each person has sole voting and investment power (or shares such powers with
    his or her spouse) with respect to the shares shown as beneficially owned.
 
(2)  Includes 404,325 shares subject  to a repurchase right  of the Company upon
    cessation of Mr. Clark's service to the Company.
 
(3) Includes 7,524,000 shares, 836,000 shares, 440,000 shares, 54,940 shares and
    8,428 shares held by Kleiner Perkins Caufield & Byers VII, KPCB VII Founders
    Fund, KPCB Information Services Zaibatsu Fund II, Kleiner Perkins Caufield &
    Byers VI  and  KPCB VI  Founders  Fund, respectively.  Also  includes  8,450
    shares,  2,828 shares and 14,980 shares held by Mr. Doerr, the L. John Doerr
    Trust, and  L. John  Doerr III  and Ann  Howland Doerr  as trustees  of  the
    Vallejo   Ventures  Trust   dated  2/12/96,  respectively,   and  an  option
    exercisable for 17,383 shares within 60 days of September 30, 1996 issued to
    Mr. Doerr  under the  1995 Director  Option  Plan. Mr.  Doerr is  a  general
    partner  of  KPCB VII  Associates,  which is  a  general partner  of Kleiner
    Perkins Caufield & Byers  VII, KPCB VII Founders  Fund and KPCB  Information
    Services  Zaibatsu Fund  II, and is  general partner of  KPCB VI Associates,
    which is a general partner of Kleiner  Perkins Caufield & Byers VI and  KPCB
    VI  Founders Fund.  Mr. Doerr disclaims  beneficial ownership  of the shares
    held by such funds except for his proportional interest therein.
 
(4) Includes (i) 2,552,000 shares subject  to a repurchase right of the  Company
    upon  cessation of  Mr. Barksdale's service  to the Company  and (ii) 80,000
    shares transferred to  a family  member of Mr.  Barksdale, as  to which  Mr.
    Barksdale disclaims beneficial ownership.
 
(5)  Includes  1,777,780 shares  held  by Adobe  and  2,000 shares  held  by Dr.
    Warnock. Also includes  an option  exercisable for 17,383  shares within  60
    days  of September 30,  1996 issued to  Dr. Warnock under  the 1995 Director
    Option Plan. Dr. Warnock is a founder  of Adobe and currently serves as  its
    Chairman of the Board and Chief Executive Officer. Dr. Warnock may therefore
    be  deemed to share voting  and investment power with  respect to the shares
    held by Adobe.
 
(6) Includes 840,000 shares  subject to a repurchase  right of the Company  upon
    cessation of Mr. Andreessen's service to the Company.
 
(7)  Includes 400,000 shares subject  to a repurchase right  of the Company upon
    cessation of Mr. Sha's service to the Company.
 
(8) Includes 416,000 shares  subject to a repurchase  right of the Company  upon
    cessation of Mr. Schell's service to the Company.
 
(9)  Includes 312,000 shares subject  to a repurchase right  of the Company upon
    cessation of Mr. Homer's service to the Company, and 200,000 shares issuable
    upon the exercise of an immediately exercisable option.
 
(10) Includes 416,000 shares subject to  a repurchase right of the Company  upon
    cessation of Mr. Rulon-Miller's service to the Company.
 
(11)  Includes (i) 200,000  shares issuable upon  currently exercisable options,
    (ii) options exercisable for 34,766 shares  within 60 days of September  30,
    1996,  (iii) an aggregate of 5,340,325  shares subject to certain repurchase
    rights of the Company upon cessation of certain executive officers'  service
    to  the Company, which  repurchase rights generally  lapse at a  rate of two
    percent per month, (iv) 10,641,148 shares owned by entities affiliated  with
    Messrs.  Doerr and  Warnock prior to  the offering and  (v) 9,752,258 shares
    owned by  entities  affiliated with  Messrs.  Doerr and  Warnock  after  the
    offering.
 
                                       35
<PAGE>
                CERTAIN UNITED STATES FEDERAL TAX CONSIDERATIONS
                      FOR NON-U.S. HOLDERS OF COMMON STOCK
 
    The  following  is a  general discussion  of  certain United  States federal
income and estate tax  consequences of the ownership  and disposition of  Common
Stock  by a  person that, for  United States  federal income tax  purposes, is a
non-resident alien individual, a foreign  corporation, a foreign partnership  or
an estate or trust, in each case not subject to U.S. federal income tax on a net
income  tax basis in  respect of income  or gain from  Common Stock (a "non-U.S.
holder"). This discussion  is based  on the Internal  Revenue Code  of 1986,  as
amended,  Treasury  regulations  thereunder,  and  administrative  and  judicial
interpretations as  of  the date  hereof,  all of  which  may be  changed.  This
discussion  does not address all  the aspects of U.S.  federal income and estate
taxation that may be relevant to  non-U.S. holders in light of their  particular
circumstances, or to certain types of holders subject to special treatment under
United  States federal  income tax  laws (such  as life  insurance companies and
dealers in securities). Nor does it  address tax consequences under the laws  of
any  state, municipality or other  taxing jurisdiction or under  the laws of any
country other than the United States.
 
    Prospective  holders  should  consult  their  own  tax  advisors  about  the
particular tax consequences to them of holding and disposing of Common Stock.
 
DIVIDENDS
 
    Generally,  dividends  paid to  a non-U.S.  holder of  Common Stock  will be
subject to United States  federal withholding tax  at a 30%  rate or such  lower
rate  as  may  be specified  by  an  applicable income  tax  treaty,  unless the
dividends are effectively  connected with  the conduct  of a  trade or  business
within  the United States (or alternatively  are attributable to a United States
permanent establishment of such  holder, if an applicable  income tax treaty  so
requires  as a condition for the non-U.S.  holder to be subject to United States
income  tax  on  a  net  income  basis  in  respect  of  such  dividends).  Such
"effectively  connected"  dividends, or  dividends  attributable to  a permanent
establishment, are subject to tax at rates applicable to United States citizens,
resident aliens and domestic United  States corporations, and are not  generally
subject  to withholding. Effectively connected  dividends received by a non-U.S.
corporation may be subject to an additional  "branch profits tax" at a 30%  rate
(or  a lower rate under an applicable income tax treaty) when such dividends are
deemed repatriated from the United States.
 
    Under current  U.S.  Treasury  regulations, dividends  paid  to  an  address
outside  the United  States in a  foreign country are  presumed to be  paid to a
resident of such  country for  purposes of  the withholding  tax. Under  current
interpretation  of U.S.  Treasury regulations,  the same  presumption applies to
determine the applicability of a reduced rate of withholding under a tax treaty.
Thus, non-U.S.  holders  receiving dividends  at  addresses outside  the  United
States  are not currently required to file tax forms to obtain the benefit of an
applicable treaty rate. Under U.S. Treasury regulations that are proposed to  be
effective  for distributions after  1997 (the "Proposed  Regulations"), to claim
the benefits of a tax treaty a non-U.S. holder of Common Stock would be required
to  satisfy  applicable  certification  requirements.  In  addition,  under  the
Proposed Regulations, in the case of Common Stock held by a foreign partnership,
(x)  the certification requirement would generally be applied to the partners of
the partnership and  (y) the partnership  would be required  to provide  certain
information. The Proposed Regulations also provide look-through rules for tiered
partnerships.  It  is  not  certain  whether,  or  in  what  form,  the Proposed
Regulations will be adopted as final regulations.
 
    If there is excess  withholding on a person  eligible for a treaty  benefit,
the  person  can file  for  a refund  with  the United  States  Internal Revenue
Service.
 
GAIN ON DISPOSITION OF COMMON STOCK
 
    A non-U.S. holder  generally will not  be subject to  United States  federal
income tax in respect of gain recognized on a disposition of Common Stock unless
(i)  the gain is effectively connected with  a trade or business of the non-U.S.
holder in the United  States, (ii) in the  case of a non-U.S.  holder who is  an
individual
 
                                       36
<PAGE>
and  holds the Common  Stock as a capital  asset, such holder  is present in the
United States for 183 or  more days in the taxable  year of the disposition  and
certain  other conditions are met,  (iii) the non-U.S. holder  is subject to tax
pursuant to the provisions of United States tax law applicable to certain United
States expatriates, or (iv)  the Company is  or has been  a "U.S. real  property
holding corporation" for federal income tax purposes and, if the Common Stock is
regularly  traded on an established securities market, the non-U.S. holder held,
directly or indirectly, at any time during the 5-year period ending on the  date
of  disposition (or such shorter period that such shares were held) more than 5%
of the Common Stock. The Company has not been and does not anticipate becoming a
"U.S. real property holding  corporation" for United  States federal income  tax
purposes.
 
INFORMATION REPORTING AND BACKUP WITHHOLDING TAX
 
    Generally,  the Company must report to the U.S. Internal Revenue Service the
amount of dividends paid, the name and address of the recipient and the  amount,
if any, of tax withheld. A similar report is sent to the holder. Pursuant to tax
treaties  or other  agreements, the U.S.  Internal Revenue Service  may make its
reports available to tax  authorities in the  recipient's country of  residence.
Dividends not subject to withholding tax may be subject to backup withholding if
the  non-U.S. holder  is not an  "exempt recipient"  and fails to  provide a tax
identification number and other information  to the Company. Under the  Proposed
Regulations,   dividend  payments  generally  will  be  subject  to  information
reporting and backup  withholding unless  applicable certification  requirements
are satisfied.
 
    If the proceeds of a disposition of Common Stock are paid over by or through
a  United  States office  of a  broker,  the payment  is subject  to information
reporting and possible  backup withholding at  a 31% rate  unless the  disposing
holder  certifies  under  penalties of  perjury  as  to his  name,  address, and
non-U.S. holder status or otherwise establishes an exemption. Generally,  United
States  information reporting and backup withholding requirements will not apply
to a payment of disposition proceeds if  the payment is made outside the  United
States  through a non-United  States office of a  broker. However, United States
information reporting requirements (but not backup withholding) will apply to  a
payment  of disposition proceeds outside the United States if (A) the payment is
made through an office outside the United States of a broker that either (i)  is
a  U.S. person, (ii) derives 50% or more of its gross income for certain periods
from the conduct  of a  trade or business  in the  United States or  (iii) is  a
"controlled  foreign corporation" for United  States federal income tax purposes
and (B) the broker fails to maintain  documentary evidence that the holder is  a
non-U.S. holder or that the holder otherwise is entitled to an exemption.
 
    Backup  withholding is not  an additional tax. Rather,  the tax liability of
persons subject  to backup  withholding will  be reduced  by the  amount of  tax
withheld.  If withholding results  in an overpayment  of taxes, a  refund may be
obtained.
 
FEDERAL ESTATE TAXES
 
    Common Stock held by a non-U.S. holder at the time of death will be included
in such holder's  gross estate  for United  States federal  estate tax  purposes
unless an applicable estate tax treaty provides otherwise.
 
                                       37
<PAGE>
                                  UNDERWRITERS
 
    Under  the  terms and  subject to  conditions  contained in  an Underwriting
Agreement dated the  date hereof, the  U.S. Underwriters named  below, for  whom
Morgan Stanley & Co. Incorporated, Deutsche Morgan Grenfell Inc., Goldman, Sachs
&  Co.  and Hambrecht  & Quist  LLC  are serving  as U.S.  Representatives, have
severally agreed to purchase, and the Company and the Selling Stockholders  have
severally agreed to sell 4,250,000 shares of the Company's Common Stock, and the
International   Underwriters  named  below,  for   whom  Morgan  Stanley  &  Co.
International  Limited,   Deutsche   Morgan   Grenfell   Inc.,   Goldman   Sachs
International   and  Hambrecht  &   Quist  LLC  are   serving  as  International
Representatives   (collectively    with    the   U.S.    Representatives,    the
"Representatives"),  have severally agreed to purchase,  and the Company and the
Selling Stockholders have agreed to sell 750,000 shares of the Company's  Common
Stock  which in the aggregate equals the number of shares set forth opposite the
name of such Underwriters below.
 
<TABLE>
<CAPTION>
                                                                                               NUMBER
NAME                                                                                         OF SHARES
- -------------------------------------------------------------------------------------------  ----------
<S>                                                                                          <C>
U.S. Underwriters:
  Morgan Stanley & Co. Incorporated........................................................
  Deutsche Morgan Grenfell Inc.............................................................
  Goldman, Sachs & Co......................................................................
  Hambrecht & Quist LLC....................................................................
 
                                                                                             ----------
        Subtotal...........................................................................   4,250,000
                                                                                             ----------
 
International Underwriters:
  Morgan Stanley & Co. International Limited...............................................
  Deutsche Morgan Grenfell Inc.............................................................
  Goldman Sachs International..............................................................
  Hambrecht & Quist LLC....................................................................
 
                                                                                             ----------
        Subtotal...........................................................................     750,000
                                                                                             ----------
        Total..............................................................................   5,000,000
                                                                                             ----------
                                                                                             ----------
</TABLE>
 
    The U.S. Underwriters  and the International  Underwriters are  collectively
referred  to as the "Underwriters." The Underwriting Agreement provides that the
obligations of the several  Underwriters to pay for  and accept delivery of  the
shares  of Common Stock  offered hereby are  subject to the  approval of certain
legal matters by counsel and to  certain other conditions. The Underwriters  are
obligated  to take and pay for all of  the shares of Common Stock offered hereby
(other than those covered by the  over-allotment option described below) if  any
are taken.
 
    Pursuant  to the Agreement Between U.S. and International Underwriters, each
U.S. Underwriter has represented  and agreed that,  with certain exceptions  set
forth below, (a) it is not purchasing any U.S. Shares (as defined below) for the
account  of anyone  other than  a United States  or Canadian  Person (as defined
below) and (b) it has not offered or sold, and will not offer or sell,  directly
or indirectly, any U.S. Shares or
 
                                       38
<PAGE>
distribute  this Prospectus  outside the  United States  or Canada  or to anyone
other than a United States or Canadian Person. Pursuant to the Agreement Between
U.S.  and  International  Underwriters,   each  International  Underwriter   has
represented  and agreed that, with certain exceptions set forth below, (a) it is
not purchasing any International  Shares (as defined below)  for the account  of
any  United States or  Canadian Person and (b)  it has not  offered or sold, and
will not offer  or sell,  directly or  indirectly, any  International Shares  or
distribute  this Prospectus within the United States  or Canada or to any United
States  or  Canadian  Person.  The   foregoing  limitations  do  not  apply   to
stabilization  transactions or  to certain  other transactions  specified in the
Agreement Between U.S. and International Underwriters. With respect to Hambrecht
& Quist LLC, the foregoing representations or  agreements (i) made by it in  its
capacity  as  a U.S.  Underwriter shall  apply  only to  shares of  Common Stock
purchased by it in its  capacity as a U.S. Underwriter,  (ii) made by it in  its
capacity  as an International  Underwriter shall apply only  to shares of Common
Stock purchased by it in its capacity as an International Underwriter and  (iii)
shall  not restrict its ability to distribute  this Prospectus to any person. As
used herein, "United States or Canadian  Person" means any national or  resident
of  the United States  or Canada or any  corporation, pension, profit-sharing or
other trust or other  entity organized under  the laws of  the United States  or
Canada  or of  any political  subdivision thereof  (other than  a branch located
outside of the United States and Canada of any United States or Canadian Person)
and includes  any United  States  or Canadian  branch of  a  person who  is  not
otherwise  a United  States or  Canadian Person,  and "United  States" means the
United States of America, its territories, its possessions and all areas subject
to its  jurisdiction. All  shares of  Common Stock  to be  offered by  the  U.S.
Underwriters and International Underwriters under the Underwriting Agreement are
referred  to  herein  as  the  "U.S.  Shares"  and  the  "International Shares,"
respectively.
 
    Pursuant to the Agreement Between U.S. and International Underwriters, sales
may be made between the U.S. Underwriters and the International Underwriters  of
any  number  of  shares  of  Common  Stock  to  be  purchased  pursuant  to  the
Underwriting Agreement  as may  be  mutually agreed.  The  per share  price  and
currency  settlement of any shares  of Common Stock so  sold shall be the public
offering price set  forth on the  cover page hereof,  in United States  dollars,
less  an  amount not  greater than  the per  share amount  of the  concession to
dealers set forth below.
 
    Pursuant to the Agreement Between U.S. and International Underwriters,  each
U.S. Underwriter has represented that it has not offered or sold, and has agreed
not  to offer or  sell, any shares  of Common Stock,  directly or indirectly, in
Canada in contravention  of the  securities laws of  Canada or  any province  or
territory  thereof and has represented  that any offer of  such shares in Canada
will be  made only  pursuant to  an exemption  from the  requirement to  file  a
prospectus  in the province or territory of  Canada in which such offer is made.
Each U.S. Underwriter  has further agreed  to send to  any dealer who  purchases
from  it  any shares  of Common  Stock a  notice stating  in substance  that, by
purchasing such  shares, such  dealer  represents and  agrees  that it  has  not
offered or sold, and will not offer or sell, directly or indirectly, any of such
shares  in  Canada in  contravention of  the  securities laws  of Canada  or any
province or territory thereof and  that any offer of  shares of Common Stock  in
Canada will be made only pursuant to an exemption from the requirement to file a
prospectus  in the province or territory of  Canada in which such offer is made,
and that such dealer will  deliver to any other dealer  to whom it sells any  of
such shares a notice to the foregoing effect.
 
    Pursuant  to the Agreement Between U.S. and International Underwriters, each
International Underwriter has represented  that (i) it has  not offered or  sold
and  will not offer or sell any shares  of Common Stock to persons in the United
Kingdom except to persons whose  ordinary activities involve them in  acquiring,
holding,  managing or disposing  of investments (as principal  or agent) for the
purposes of  their  businesses or  otherwise  in circumstances  which  have  not
resulted  and will not  result in an offer  to the public  in the United Kingdom
within the meaning  of the  Public Offers  of Securities  Regulations 1995  (the
"Regulations");  (ii)  it  has  complied and  will  comply  with  all applicable
provisions of  the Financial  Services  Act of  1986  and the  Regulations  with
respect  to anything done by it in relation to such shares in, from or otherwise
involving the United Kingdom: and (iii) it has only issued or passed on and will
only issue or pass on to any person in the
 
                                       39
<PAGE>
United Kingdom any document received by it in connection with the issue of  such
shares,  if that person is of a kind described in Article 11(3) of the Financial
Services Act 1986 (Investment Advertisements)  (Exemptions) Order 1995, or is  a
person to whom such document may otherwise lawfully be issued or passed on.
 
    Pursuant  to the Agreement Between U.S. and International Underwriters, each
International Underwriter has represented and agreed that it has not offered  or
sold,  and will not offer or sell, directly or indirectly, in Japan or to or for
the account of  any resident  thereof, any shares  of Common  Stock acquired  in
connection   with  this  offering,  except  for  offers  or  sales  to  Japanese
International Underwriters or dealers and except pursuant to any exemption  from
the  registration requirements of the Securities and Exchange Law of Japan. Each
International Underwriter has further agreed to send to any dealer who purchases
from it any of such  shares of Common Stock a  notice stating in substance  that
such dealer may not offer or sell any of such shares, directly or indirectly, in
Japan  or to or for the account of  any resident thereof, except pursuant to any
exemption from the registration requirements of the Securities and Exchange  Law
of  Japan, and that such dealer  will send to any other  dealer to whom it sells
any of such shares a notice to the foregoing effect.
 
    The Underwriters propose to offer part of the shares of Common Stock offered
hereby directly to  the public at  the public  offering price set  forth on  the
cover  page hereof  and part to  certain dealers  at a price  which represents a
concession not in excess of $        per share under the public offering  price.
The  Underwriters may allow, and such dealers  may re-allow, a concession not in
excess of $        per share to other Underwriters or to certain other dealers.
 
    Pursuant to the Underwriting Agreement, the Company has granted to the  U.S.
Underwriters  an  option,  exercisable  for  30  days  from  the  date  of  this
Prospectus, to purchase up  to an additional 750,000  shares of Common Stock  at
the  public offering price set forth on the cover page hereof, less underwriting
discounts and commissions.  The U.S.  Underwriters may exercise  such option  to
purchase solely for the purpose of covering over-allotments, if any, incurred in
the sale of the shares of Common Stock offered hereby. To the extent such option
is  exercised, each U.S.  Underwriter will become  obligated, subject to certain
conditions, to purchase  approximately the  same percentage  of such  additional
shares  as the  number set  forth next  to such  U.S. Underwriters'  name in the
preceding table bears  to the  total number of  shares of  Common Stock  offered
hereby to the U.S. Underwriters.
 
    The  Representatives have informed the Company  that the Underwriters do not
intend to  confirm sales  to  accounts over  which they  exercise  discretionary
authority.
 
    The  Company, the Selling  Stockholders and the  Underwriters have agreed to
indemnify each other  against certain liabilities,  including liabilities  under
the Securities Act of 1933, as amended (the "Securities Act").
 
    Each  of the executive  officers and directors of  the Company, and entities
affiliated with one  of the Company's  non-employee directors, who  collectively
held as of September 30, 1996 an aggregate of 35,694,037 shares, have agreed not
to sell or otherwise dispose of Common Stock of the Company through February 15,
1997  without the prior consent of Morgan Stanley & Co. Incorporated, except for
an aggregate  of  200,000 shares  held  by  certain executive  officers  of  the
Company,  which  shall  not  be  subject  to  such  restriction.  Certain  other
stockholders of the  Company, including  an entity  affiliated with  one of  the
Company's  non-employee  directors, who  are selling  an aggregate  of 3,000,000
shares in this offering and will hold an aggregate of 2,352,727 shares after the
offering, have agreed not to  sell or otherwise dispose  of Common Stock of  the
Company  for up to 120 days after the  date of this Prospectus without the prior
consent of Morgan  Stanley &  Co. Incorporated. The  Company has  agreed in  the
Underwriting  Agreement that  it will not,  directly or  indirectly, without the
prior written consent of Morgan Stanley & Co. Incorporated, offer, pledge, sell,
contract to sell, sell any option  or contract to purchase, purchase any  option
or  contract  to  sell, grant  any  option,  right or  warrant  to  purchase, or
otherwise transfer or dispose  of any shares of  Common Stock or any  securities
convertible  into or  exchangeable for  Common Stock, for  a period  of 120 days
after the date of this Prospectus, subject to certain limited exceptions. Except
for shares subject to the restrictions set
 
                                       40
<PAGE>
forth above  and (i)  14,219,720 shares  subject to  a repurchase  right of  the
Company  which generally lapses at a rate of  20% after 10 months of service and
two percent per  month thereafter, and  (ii) 2,755,544 shares  held by  existing
stockholders  which are "restricted securities" as  that term is defined in Rule
144 under the Securities Act and are not eligible for sale until the  expiration
of  their respective two-year holding periods,  all other shares of Common Stock
are freely tradeable without restriction.
 
    In connection with  this offering,  certain Underwriters  and selling  group
members  (if any)  or their respective  affiliates who  are qualified registered
market makers on the Nasdaq National Market, may engage in passive market making
transactions in the  Common Stock on  the Nasdaq National  Market in  accordance
with  Rule  10b-6A under  the Exchange  Act  during the  two-business-day period
before commencement of offers or sales  of the Common Stock. The passive  market
making  transactions must comply with applicable  volume and price limits and be
identified as such. In general, a passive market maker may display its bid at  a
price  not in  excess of the  highest independent  bid for the  security; if all
independent bids are lowered below the passive market maker's bid, however, such
bid must then  be lowered  when certain  purchase limits  are exceeded.  Passive
market  making may  stabilize the market  price of  the Common Stock  at a level
above that which might otherwise prevail and, if commenced, may be  discontinued
at any time.
 
                                 LEGAL MATTERS
 
    The  validity of the issuance  of the shares of  Common Stock offered hereby
will be  passed  upon for  the  Company by  Wilson  Sonsini Goodrich  &  Rosati,
Professional  Corporation,  Palo  Alto,  California.  Certain  legal  matters in
connection with the offering  will be passed upon  for the Underwriters by  Gray
Cary Ware & Freidenrich, A Professional Corporation, Palo Alto, California.
 
                                    EXPERTS
 
    The  consolidated financial  statements and the  related financial statement
schedule of Netscape Communications Corporation  at December 31, 1995 and  1994,
and  for each of the three years in the period ended December 31, 1995, included
and/or incorporated by reference in the Company's Annual Report on Form 10-K for
the year  ended December  31, 1995,  have been  audited by  Ernst &  Young  LLP,
independent  auditors, as  set forth in  their report  incorporated by reference
therein, and are incorporated by reference  herein in reliance upon such  report
given upon the authority of such firm as experts in accounting and auditing.
 
    The  supplemental consolidated financial statements and related supplemental
financial statement schedule of Netscape Communications Corporation at  December
31,  1995 and 1994 and for each of  the three years in the period ended December
31, 1995, included in the Company's Annual Report on Form 10-K/A Amendment No. 2
for the year ended December  31, 1995, have been audited  by Ernst & Young  LLP,
independent  auditors, as  set forth in  their report  incorporated by reference
herein in reliance upon  such report given  upon the authority  of such firm  as
experts in accounting and auditing.
 
    The  financial statements of InSoft, Inc. at  December 31, 1995 and 1994 and
for each of the three years in  the period ended December 31, 1995  incorporated
by  reference in Netscape Communications Corporation  Form 8-K/A dated April 25,
1996 have been audited by Ernst & Young LLP, independent auditors, as set  forth
in  their report incorporated  by reference herein in  reliance upon such report
given upon the authority of such firm as experts in accounting and auditing.
 
                             AVAILABLE INFORMATION
 
    The Company has filed with the  Commission a Registration Statement on  Form
S-3  (referred  to herein,  together with  all amendments  and exhibits,  as the
"Registration  Statement")  under  the  Securities  Act,  with  respect  to  the
securities  offered by this Prospectus. This  Prospectus does not contain all of
the information set forth in the Registration Statement, certain parts of  which
have  been  omitted  in  accordance  with  the  rules  and  regulations  of  the
Commission. For  further  information  with  respect  to  the  Company  and  the
securities
 
                                       41
<PAGE>
offered hereby, reference is made to the Registration Statement. Statements made
in this Prospectus as to the contents of any contract or other document referred
to or incorporated by reference herein are not necessarily complete and, in each
instance  in which a copy of such contract or document is filed as an exhibit to
the Registration Statement  or another document  filed by the  Company with  the
Commission,  reference is  made to  such copy and  each such  statement shall be
deemed qualified in all respects by  such reference. Copies of the  Registration
Statement may be inspected, without charge, at the offices of the Commission, or
obtained at prescribed rates from the Public Reference Section of the Commission
at the address set forth below.
 
    The  Company is  subject to the  informational requirements  of the Exchange
Act, and  in accordance  therewith  files reports,  proxy statements  and  other
information  with  the  Commission.  Such reports,  proxy  statements  and other
information filed  by the  Company can  be inspected  and copied  at the  public
reference
facilities  of  the Commission  located at  Room 1024,  450 Fifth  Street, N.W.,
Judiciary Plaza, Washington, D.C. 20549 and at the Commission's regional offices
at Seven  World Trade  Center,  13th Floor,  New York,  New  York 10048  and  at
Northwestern  Atrium  Center,  500  West Madison  Street,  Suite  1400, Chicago,
Illinois 60661. Copies  of such material  also can be  obtained from the  Public
Reference  Section  of the  Commission  at Room  1024,  450 Fifth  Street, N.W.,
Washington, D.C. 20549, at  prescribed rates. The  Commission maintains a  World
Wide  Web site that contains reports, proxy and information statements and other
information regarding registrants that file electronically with the  Commission.
The  address of  the site is  http://www.sec.gov. The Company's  Common Stock is
quoted for trading on the Nasdaq  National Market and reports, proxy  statements
and  other information concerning the Company may be inspected at the offices of
the National  Association of  Securities Dealers,  Inc., 9513  Key West  Avenue,
Rockville, Maryland 20850.
 
                                       42
<PAGE>
                               GLOSSARY OF TERMS
 
<TABLE>
<CAPTION>
STANDARD                                              DESCRIPTION
- ----------------------------------------------------  ------------------------------------------------------------
 
<S>                                                   <C>
CGI.................................................  Common Gateway Interface
CORBA...............................................  Common Object Request Broker Architecture
FTP.................................................  File Transfer Protocol
HTML................................................  HyperText Markup Language
HTTP................................................  HyperText Transfer Protocol
IIOP................................................  Internet Inter-ORB Protocol
IMAP................................................  Internet Message Access Protocol
IRC.................................................  Internet Relay Chat
Java................................................  Object-oriented, cross-platform programming language
Java Script.........................................  Open, cross-platform object scripting language
LDAP................................................  Lightweight Directory Access Protocol
MIME................................................  Multipurpose Internet Mail Extensions
NNTP................................................  Network News Transfer Protocol
ORB.................................................  Object Request Broker
POP.................................................  Post Office Protocol
RDM.................................................  Resource Description Messages
RTSP................................................  Real Time Streaming Protocol
SDK.................................................  Software Development Kit
SET.................................................  Secure Electronic Transaction
S/MIME..............................................  Secure Multipurpose Internet Mail Extensions
SMTP................................................  Simple Mail Transfer Protocol
SNMP................................................  Simple Network Management Protocol
SOIF................................................  Summary Object Interchange Format
SQL.................................................  Structured Query Language
SSL.................................................  Secure Sockets Layer
TCP/IP..............................................  Transmission Control Protocol/Internet Protocol
vCalendar...........................................  Versit Calendar Standard
VRML................................................  Virtual Reality Markup Language
</TABLE>
 
                                       43
<PAGE>
                                     [LOGO]
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
    The   following  table  sets  forth  the  costs  and  expenses,  other  than
underwriters discounts and  commissions, payable  by the  Company in  connection
with  the sale of  Common Stock being  registered. All of  the amounts shown are
estimates except  for the  SEC registration  fee, the  NASD filing  fee and  the
Nasdaq National Market additional listing fee.
 
<TABLE>
<CAPTION>
                                                                                                        AMOUNT TO
                                                                                                         BE PAID
                                                                                                        ----------
<S>                                                                                                     <C>
SEC Registration Fee..................................................................................  $   81,894
NASD Filing Fee.......................................................................................      27,525
Nasdaq National Market additional listing fee.........................................................      17,500
Printing and engraving................................................................................     200,000
Legal fees and expenses of the Company................................................................     300,000
Accounting fees and expenses..........................................................................     200,000
Blue Sky fees and expenses............................................................................       5,000
Transfer agent and registrar fees and expenses........................................................       5,000
Miscellaneous.........................................................................................      63,081
                                                                                                        ----------
Total.................................................................................................  $  900,000
                                                                                                        ----------
                                                                                                        ----------
</TABLE>
 
ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
    As  permitted by  Section 145 of  the Delaware General  Corporation Law, the
Registrant's Amended  and  Restated  Certificate  of  Incorporation  includes  a
provision  that eliminates the personal liability  of its directors for monetary
damages for breach  or alleged breach  of their  duty of care.  In addition,  as
permitted  by Section 145 of the Delaware General Corporation Law, Article VI of
the Amended  and  Restated Bylaws  of  the  Registrant provides  that:  (i)  the
Registrant  is  required to  indemnify its  directors  and officers  and persons
serving in  such  capacities  in  other  business  enterprises  (including,  for
example,  subsidiaries of  the Registrant) at  the Registrant's  request, to the
fullest extent permitted by  Delaware law, including  in those circumstances  in
which indemnification would otherwise be discretionary; (ii) the Registrant may,
in  its discretion, indemnify employees and  agents in those circumstances where
indemnification is not  required by  law; (iii)  the Registrant  is required  to
advance  expenses, as incurred, to its directors and officers in connection with
defending a proceeding (except that it is not required to advance expenses to  a
person  against whom  the Registrant brings  a claim  for breach of  the duty of
loyalty, failure to act in good faith, intentional misconduct, knowing violation
of law or deriving an improper  personal benefit); (iv) the rights conferred  in
the  Amended  and  Restated Bylaws  are  not  exclusive, and  the  Registrant is
authorized to enter into indemnification agreements with its directors, officers
and employees; and  (v) the  Registrant may  not retroactively  amend the  Bylaw
provisions in a way that is adverse to such directors, officers and employees.
 
    The  Registrant's policy  is to  enter into  indemnification agreements with
each of its  directors and  executive officers,  a form  of which  was filed  as
Exhibit  10.1 to Registration  Statement No. 33-93862,  that provide the maximum
indemnity allowed  to directors  and officers  by Section  145 of  the  Delaware
General  Corporation Law and the Amended and Restated Bylaws, as well as certain
additional procedural protections. In  addition, the indemnification  agreements
provide  that directors and officers will be indemnified to the fullest possible
extent not prohibited by  law against all  expenses (including attorney's  fees)
and  settlement amounts paid  or incurred by  them in any  action or proceeding,
including any action by or in the  right of the Registrant, arising out of  such
person's  services as a director or officer of the Registrant, any subsidiary of
the Registrant or any other company or enterprise to which such person  provides
services  at the request of the Registrant. The Registrant will not be obligated
pursuant to the indemnification agreements  to indemnify or advance expenses  to
an  indemnified party  with respect  to proceedings  or claims  initiated by the
 
                                      II-1
<PAGE>
indemnified party and not by way of defense, except with respect to  proceedings
specifically  authorized by the Board of Directors or brought to enforce a right
to indemnification under the indemnification agreement, the Registrant's Amended
and Restated Bylaws or any statute or law. Under the agreements, the  Registrant
is  not  obligated  to indemnify  the  indemnified  party (i)  for  any expenses
incurred by the indemnified party with  respect to any proceeding instituted  by
the  indemnified party  to enforce  or interpret  the agreement,  if a  court of
competent jurisdiction determines that each  of the material assertions made  by
the  indemnified party  in such  proceeding was  not made  in good  faith or was
frivolous; (ii) for any  amounts paid in settlement  of a proceeding unless  the
Registrant  consents to  such settlement; (iii)  with respect  to any proceeding
brought by the Registrant against the indemnified party for willful  misconduct,
unless a court determines that each of such claims was not made in good faith or
was frivolous; (iv) on account of any suit in which judgment is rendered against
the  indemnified party for  an accounting of  profits made from  the purchase or
sale by the indemnified  party of securities of  the Registrant pursuant to  the
provisions  of Section 16(b) of the Securities  Exchange Act of 1934 and related
laws; (v)  on  account of  the  indemnified  party's conduct  which  is  finally
adjudged  to have  been knowingly  fraudulent or  deliberately dishonest,  or to
constitute willful misconduct or a knowing violation of the law; (vi) on account
of any conduct  from which the  indemnified party derived  an improper  personal
benefit;  (vii)  on account  of  conduct the  indemnified  party believed  to be
contrary to the best interests of the Registrant or its stockholders; (viii)  on
account  of conduct that constituted a breach of the indemnified party's duty of
loyalty to the Registrant or its stockholders; or (ix) if a final decision by  a
court   having   jurisdiction  in   the   matter  shall   determine   that  such
indemnification is not lawful.
 
    The indemnification provisions in  the Amended and  Restated Bylaws and  the
indemnification agreements entered into between the Registrant and its directors
and  officers  may  be  sufficiently  broad  to  permit  indemnification  of the
Registrant's directors and officers for liabilities arising under the Securities
Act.
 
    Reference is made to the form of Underwriting Agreement filed as Exhibit 1.1
to this Registration Statement for certain provisions regarding  indemnification
of officers and directors of the Company by the several Underwriters.
 
ITEM 16.  EXHIBITS.
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER
- ---------
<C>        <S>
   1.1     Form of Underwriting Agreement.
   5.1     Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation.
  23.1     Consent of Counsel (included in Exhibit 5.1).
  23.2     Consent of Ernst & Young LLP, Independent Auditors.
  23.3     Consent of Ernst & Young LLP, Independent Auditors.
  24.1     Power of Attorney (see page II-4).
</TABLE>
 
ITEM 17.  UNDERTAKINGS.
 
    The undersigned registrant hereby undertakes:
 
    (1)  To file, during any  period in which offers or  sales are being made, a
post-effective amendment to this registration statement to include any  material
information with respect to the plan of distribution not previously disclosed in
this  registration statement or any material  change to such information in this
registration statement.
 
    (2) That, for the purpose of determining any liability under the  Securities
Act, each such post-effective amendment shall be deemed to be a new registration
statement  relating to the securities offered  therein, and the offering of such
securities at that time  shall be deemed  to be the  initial bona fide  offering
thereof.
 
    (3)  To remove from registration by  means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.
 
                                      II-2
<PAGE>
    (4) That, for  purposes of  determining any liability  under the  Securities
Act,  each filing of the registrant's annual report pursuant to Section 13(a) or
Section 15(d)  of the  Exchange Act  that is  incorporated by  reference in  the
registration  statement  shall  be deemed  to  be a  new  registration statement
relating to the securities offered therein, and the offering of such  securities
at that time shall be deemed to be the initial bona fide offering thereof.
 
    Insofar  as indemnification for liabilities arising under the Securities Act
may  be  permitted  to  directors,  officers  and  controlling  persons  of  the
registrant  pursuant to the  foregoing provisions, or  otherwise, the registrant
has been advised that in the  opinion of the Securities and Exchange  Commission
such indemnification is against public policy as expressed in the Securities Act
and  is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the  payment by the registrant of  expenses
incurred  or paid by a director, officer or controlling person of the registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities  being
registered, the registrant will, unless in the opinion of its counsel the matter
has  been settled  by controlling  precedent, submit  to a  court of appropriate
jurisdiction the question whether such  indemnification by it is against  public
policy  as expressed  in the Securities  Act and  will be governed  by the final
adjudication of such issue.
 
                                      II-3
<PAGE>
                                   SIGNATURES
 
    Pursuant  to the requirements of the  Securities Act of 1933, the Registrant
certifies that it has  reasonable grounds to  believe that it  meets all of  the
requirements  for  filing on  Form  S-3 and  has  duly caused  this Registration
Statement to  be  signed  on  its behalf  by  the  undersigned,  thereunto  duly
authorized, in the City of Mountain View, State of California, on this 30 day of
October 1996.
 
                                            NETSCAPE COMMUNICATIONS CORPORATION
 
                                            By:      /s/ PETER L.S. CURRIE
 
                                               ---------------------------------
                                                      Peter L.S. Currie,
                                                SENIOR VICE PRESIDENT AND CHIEF
                                                       FINANCIAL OFFICER
 
                               POWER OF ATTORNEY
 
    KNOW  ALL THESE PERSONS BY THESE  PRESENTS, that each person whose signature
appears below constitutes and appoints James H. Clark, James L. Barksdale, Peter
L.S. Currie and Roberta  R. Katz and  each of them,  jointly and severally,  his
attorneys-in-fact,  each with full power of substitution and resubstitution, for
him in his name, place and stead, in any and all capacities, to sign any and all
amendments (including post-effective amendments) to this Registration  Statement
on  Form S-3, and to file the same, with exhibits thereto and other documents in
connection therewith,  with  the  Securities  and  Exchange  Commission,  hereby
ratifying  and confirming all that each said attorneys-in-fact or his substitute
or substitutes, may do or cause to be done by virtue hereof.
 
    Pursuant  to  the  requirements  of   the  Securities  Act  of  1933,   this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated.
 
<TABLE>
<CAPTION>
                      SIGNATURE                                        TITLE                         DATE
- ------------------------------------------------------  ------------------------------------  -------------------
 
<C>                                                     <S>                                   <C>
                     /s/ JAMES L. BARKSDALE             President and Chief Executive
     -------------------------------------------          Officer and Director (PRINCIPAL      October 30, 1996
                  James L. Barksdale                      EXECUTIVE OFFICER)
 
                      /s/ PETER L.S. CURRIE             Senior Vice President and Chief
     -------------------------------------------          Financial Officer (PRINCIPAL         October 30, 1996
                  Peter L.S. Currie                       FINANCIAL OFFICER)
 
                      /s/ NOREEN G. BERGIN              Vice President and Corporate
     -------------------------------------------          Controller (PRINCIPAL ACCOUNTING     October 30, 1996
                   Noreen G. Bergin                       OFFICER)
 
                        /s/ JAMES H. CLARK
     -------------------------------------------        Chairman of the Board                  October 30, 1996
                    James H. Clark
 
                     /s/ MARC L. ANDREESSEN
     -------------------------------------------        Senior Vice President, Technology      October 30, 1996
                  Marc L. Andreessen                      and Director
 
                         /s/ L. JOHN DOERR
     -------------------------------------------        Director                               October 30, 1996
                    L. John Doerr
 
                       /s/ JOHN E. WARNOCK
     -------------------------------------------        Director                               October 30, 1996
                   John E. Warnock
</TABLE>
 
                                      II-4
<PAGE>
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER                                             EXHIBIT TABLE                                             PAGE NO.
- -----------  ----------------------------------------------------------------------------------------------  -------------
<S>          <C>                                                                                             <C>
       1.1   Form of Underwriting Agreement.
       5.1   Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation.
      23.1   Consent of Counsel (included in Exhibit 5.1).
      23.2   Consent of Ernst & Young LLP, Independent Auditors.
      23.3   Consent of Ernst & Young LLP, Independent Auditors.
      24.1   Power of Attorney (see page II-4).
</TABLE>

<PAGE>



                                                                        , 1996


Morgan Stanley & Co. Incorporated
Deutsche Morgan Grenfell Inc.
Goldman, Sachs & Co.
Hambrecht & Quist LLC
as Representatives of the several U.S. Underwriters
     named in Schedule II herein
c/o Morgan Stanley & Co. Incorporated 
     1251 Avenue of the Americas
     New York, New York 10020

Morgan Stanley & Co. International Limited
Deutsche Morgan Grenfell Inc.
Goldman Sachs International
Hambrecht & Quist LLC
as Representatives of the several International
     Underwriters named in Schedule III herein
c/o Morgan Stanley & Co. International Limited
     25 Cabot Square
     Canary Wharf
     London E14 4QA
     England

Dear Sirs:

     Netscape Communications Corporation, a Delaware corporation (the
"Company"), proposes to issue and sell to the several Underwriters (as defined
below), and certain stockholders of the Company (the "Selling Stockholders")
named in Schedule I hereto severally propose to sell to the several
Underwriters, an aggregate of 5,000,000 shares of the Common Stock ($0.0001 per
share par value) of the Company (the "Firm Shares"), of which 2,022,218 shares
are to be issued and sold by the Company and 2,977,728 shares are to be sold by
the Selling Stockholders, each Selling Stockholder selling the amount set forth
opposite such Selling Stockholder's name in Schedule I hereto.

     It is understood that, subject to the conditions hereinafter stated,
4,250,000 Firm Shares (the "U.S. Firm Shares") will be sold to the several U.S.
Underwriters named in Schedule II hereto (the "U.S. Underwriters") in connection
with the offering and sale of such U.S. Firm Shares in the United States and
Canada to United States and Canadian Persons (as such terms are defined in the
Agreement Between U.S. and International Underwriters of even date herewith),
and 750,000 Firm Shares (the "International Shares") will be issued and sold to
the several International Underwriters named in Schedule III hereto (the
"International Underwriters") in 

                                       1

<PAGE>


connection with the offering and sale of such International Shares outside 
the United States and Canada to persons other than United States and Canadian 
Persons.  Morgan Stanley & Co. Incorporated, Deutsche Morgan Grenfell, Inc., 
Goldman, Sachs & Co. and Hambrecht & Quist LLC shall act as representatives 
(the "U.S. Representatives") of the several U.S. Underwriters, and Morgan 
Stanley & Co. International Limited, Deutsche Morgan Grenfell, Inc., Goldman, 
Sachs & Co. and Hambrecht & Quist LLC shall act as representatives (the 
"International Representatives") of the several International Underwriters.  
The U.S. Underwriters and the International Underwriters are hereinafter 
collectively referred to as the Underwriters.

     The Company also proposes to issue and sell to the several U.S.
Underwriters not more than an additional 750,000 shares of its Common Stock
($0.0001 per share par value) (the "Additional Shares") if and to the extent
that the U.S. Representatives shall have determined to exercise, on behalf of
the U.S. Underwriters, the right to purchase such shares of Common Stock granted
to the U.S. Underwriters in Article II hereof.  The Firm Shares and the
Additional Shares are hereinafter collectively referred to as the Shares.  The
shares of Common Stock ($0.0001 per share par value) of the Company to be
outstanding after giving effect to the sales contemplated hereby are hereinafter
referred to as the Common Stock.  The Company and the Selling Stockholders are
hereinafter sometimes collectively referred to as the "Sellers."

     The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement relating to the Shares.  The registration
statement contains two prospectuses to be used in connection with the offering
and sales of the Shares: the U.S. prospectus, to be used in connection with the
offering and sale of Shares in the United States and Canada to United States and
Canadian Persons, and the international prospectus, to be used in connection
with the offering and sale of Shares outside the United States and Canada to
persons other than United States and Canadian Persons.  The international
prospectus is identical to the U.S. prospectus except for the outside front
cover page and page ____ .  The registration statement as amended at the time it
becomes effective, including the information (if any) deemed to be part of the
registration statement at the time of effectiveness pursuant to Rule 430A under
the Securities Act of 1933, as amended (the "Securities Act"), is hereinafter
referred to as the Registration Statement; the U.S. prospectus and the
international prospectus in the respective forms first used to confirm sales of
Shares are hereinafter collectively referred to as the Prospectus (including, in
the case of all references to the Registration Statement and the Prospectus,
documents incorporated therein by reference).  If the Company files a
registration statement to register a portion of the Shares and relies on Rule
462(b) for such registration statement to become effective upon filing with the
Commission (the "Rule 462 Registration Statement"), then any reference to the
"Registration Statement" shall be deemed to include the Rule 462 Registration
Statement, as amended from time to time.

                                       2

<PAGE>

                                       I.
     
     The Company represents and warrants to each of the Underwriters that:

     (a)  The Registration Statement has become effective; no stop order 
suspending the effectiveness of the Registration Statement is in effect, and 
no proceedings for such purpose are pending before or, to the best knowledge 
of the Company, threatened by the Commission.

     (b)  (i) Each part of the Registration Statement, when such part became 
effective, did not contain and each such part, as amended or supplemented, if 
applicable, will not contain any untrue statement of a material fact or omit 
to state a material fact required to be stated therein or necessary to make 
the statements therein not misleading, (ii) the Registration Statement and 
the Prospectus comply and, as amended or supplemented, if applicable, will 
comply in all material respects with the Securities Act and the applicable 
rules and regulations of the Commission thereunder and (iii) the Prospectus 
does not contain and, as amended or supplemented, if applicable, will not 
contain any untrue statement of a material fact or omit to state a material 
fact necessary to make the statements therein, in the light of the 
circumstances under which they were made, not misleading, except that the 
representations and warranties set forth in this paragraph (b) do not apply 
to statements or omissions in the Registration Statement or the Prospectus 
based upon information relating to any Underwriter furnished to the Company 
in writing by such Underwriter through you expressly for use therein.

     (c)  Company has been duly incorporated, is validly existing as a 
corporation in good standing under the laws of the jurisdiction of its 
incorporation, has the corporate power and authority to own and lease its 
property and to conduct its business as described in the Prospectus and is 
duly qualified to transact business and is in good standing in each 
jurisdiction in which the conduct of its business or its ownership or leasing 
of property requires such qualification, except to the extent that the 
failure to be so qualified or be in good standing would not have a material 
adverse effect on the Company and the Subsidiaries (as defined below), taken 
as a whole.

     (d)  The subsidiaries listed on Exhibit 21 to the Registration Statement 
(the "Subsidiaries"), have been duly incorporated, are validly existing as 
corporations in good standing under the respective laws of the jurisdictions 
of their incorporation, have the corporate power and authority to own and 
lease their property and to conduct their business as described in the 
Prospectus and are duly qualified to transact business and are in good 
standing in each jurisdiction in which the conduct of their respective 
businesses or ownership or leasing of property requires such qualification, 
except to the extent that the failure to be so qualified or be in good 
standing would not have a material adverse effect on the Company and the 
Subsidiaries, taken as a whole.  All of the issued shares of capital stock of 
the

                                       3

<PAGE>

Subsidiaries have been duly and validly authorized and issued, are fully 
paid and non-assessable, and owned directly or indirectly by the Company, 
free and clear of all liens, encumbrances, equities or claims.  Except for 
the Subsidiaries, the Company does not own, directly or indirectly, an 
interest in any corporation, partnership, business, trust or other entity 
required to be set forth in Exhibit 21 to the Registration Statement.

     (e)  The authorized capital stock of the Company conforms as to legal 
matters to the description thereof contained in the Prospectus.

     (f)  The shares of Common Stock outstanding prior to the issuance of the 
Shares to be sold by the Company have been duly authorized and are validly 
issued, fully paid and non-assessable.  All outstanding shares of capital 
stock and options and other rights to acquire capital stock were not issued 
in contradiction of any preemptive fights, rights of first refusal or other 
similar fights.  No shares of Common Stock are required pursuant to any 
agreement or other right to be registered under the Registration Statement, 
nor does any person or entity have any right to cause Common Stock to be 
registered under the Registration Statement, which rights have not been 
validly waived.

     (g)  The Shares have been duly authorized and, when issued and delivered 
in accordance with the terms of this Agreement, will be validly issued, fully 
paid and non-assessable, and the issuance of such Shares will not be subject 
to any preemptive rights, rights of first refusal or other similar rights.

     (h)  This Agreement has been duly authorized, executed and delivered by 
the Company.

     (i)  The execution and delivery by the Company of, and the performance 
by the Company of its obligations under, this Agreement will not contravene 
any provision of applicable law or the certificate of incorporation or by 
laws of the Company or any agreement or other instrument binding upon the 
Company or the Subsidiaries that is material to the Company and the 
Subsidiaries, taken as a whole, or any judgment, order or decree of any 
governmental body, agency or court having jurisdiction over the Company or 
the Subsidiaries, and no consent, approval, authorization or order of or 
qualification with any governmental body or agency is required for the 
performance by the Company of its obligations under this Agreement, except 
such as may be required by the securities or Blue Sky laws of the various 
states in connection with the offer and sale of the Shares.

     (j)  There has not occurred any material adverse change, or any 
development involving a prospective material adverse change, in the 
condition, financial or otherwise, or in the earnings, business or operations 
of the Company and the Subsidiaries, taken as a whole, from that set forth in 
the Prospectus.


                                       4

<PAGE>

     (k)  There are no legal or governmental proceedings pending or, to the 
best knowledge of the Company, threatened to which the Company or any of the 
Subsidiaries is a party or to which any of the properties of the Company or 
any of the Subsidiaries is subject that are required to be described in the 
Registration Statement or the Prospectus and are not so described or any 
statutes, regulations, contracts or other documents that are required to be 
described in the Registration Statement or the Prospectus or to be filed as 
exhibits to the Registration Statement that are not described or filed as 
required.

     (l)  Each of the Company and the Subsidiaries has all necessary 
consents, authorizations, approvals, orders, certificates and permits of and 
from, and has made all declarations and filings with, all federal, state, 
local and other governmental authorities, all self-regulatory organizations 
and all courts and other tribunals, to own, lease, license and use its 
properties and assets and to conduct its business in the manner described in 
the Prospectus, except to the extent that the failure to obtain or file such, 
would not have a material adverse effect on the Company and the Subsidiaries, 
taken as a whole.

     (m)  Each preliminary prospectus filed as part of the registration 
statement as originally filed or as part of any amendment thereto, or filed 
pursuant to Rule 424 or Rule 462 under the Securities Act, complied when so 
filed in all material respects with the Securities Act and the rules and 
regulations of the Commission thereunder.

     (n)  The Company is not, and after giving effect to the issuance and 
sale of the Shares by the Company will not be, an "investment company" or an 
entity "controlled" by an "investment company" as such terms are defined in 
the Investment Company Act of 1940, as amended.

     (o)  The Company and the Subsidiaries are (i) in compliance with any and 
all applicable foreign, federal, state and local laws and regulations 
relating to the protection of human health and safety, the environment or 
hazardous or toxic substances or wastes, pollutants or contaminants 
("Environmental Laws"), (ii) have received all permits, licenses or other 
approvals required of them under applicable Environmental Laws to conduct 
their respective businesses and (iii) are in compliance with all terms and 
conditions of any such permit, license or approval, except where such 
noncompliance with Environmental Laws, failure to receive required permits, 
licenses or other approvals or failure to comply with the terms and 
conditions of such permits, licenses or approvals would not, singly or in the 
aggregate, have a material adverse effect on the Company and the 
Subsidiaries, taken as a whole.

     (p)  The Company has complied with all provisions of Section 517.075, 
Florida Statutes (Chapter 92-198, Laws of Florida).

     (q)  The Company maintains a system of internal accounting controls 
sufficient to provide reasonable assurances that (i) transactions are 
executed in

                                       5

<PAGE>

accordance with management's general or specific authorization; (ii) 
transactions are recorded as necessary to permit preparation of financial 
statements in conformity with generally accepted accounting principles and to 
maintain accountability for assets; (iii) access to assets is permitted only 
in accordance with management's general or specific authorization; and (iv) 
the recorded accountability for assets is compared with existing assets at 
reasonable intervals and appropriate action is taken with respect to any 
differences.

     (r)  Each of the Company and the Subsidiaries owns or possesses all 
trademarks, trade names, service marks, service names, copyrights, license 
rights, know-how (including trade secrets and other unpatented and/or 
unpatentable proprietary or confidential information, systems or procedures) 
and other intellectual property rights, and to the best of the Company's 
knowledge, all patent and patent rights, necessary to carry on its business 
in all material respects as described in the Prospectus and, except as set 
forth in the Prospectus with respect to Unisys Corporation, and Caro-Kann 
Corporation, neither the Company nor the Subsidiaries has received any notice 
of infringement of or conflict with asserted, unresolved rights of others 
with respect to any of the foregoing which, singly or in the aggregate, if 
the subject of any unfavorable decision, ruling or finding, would result in 
any material adverse change in the condition, financial or otherwise, or in 
the earnings, business or operations of the Company or the Subsidiaries, 
taken as a whole.

     (s)  Subsequent to the respective dates as of which information is given 
in the Registration Statement and the Prospectus, (1) the Company and the 
Subsidiaries have not incurred any material liability or obligation, direct 
or contingent, nor entered into any material transaction not in the ordinary 
course of business; (2) the Company has not purchased (except for the 
repurchase of shares of Common Stock from employees, officers, directors, 
consultants or other persons providing services to the Company or the 
Subsidiaries pursuant to agreements under which the Company has the option to 
repurchase such shares at cost upon the occurrence of certain events, such as 
termination of employment) any of its outstanding capital stock, nor 
declared, paid or otherwise made any dividend or distribution of any kind on 
its capital stock other than ordinary and customary dividends; and (3) there 
has not been any material change in the capital stock, short-term debt or 
long-term debt of the Company or the Subsidiaries, except in each case as 
described in or contemplated by the Prospectus.

     (t)  The Company and the Subsidiaries have good and marketable title in 
fee simple to all real property and good and marketable title to all personal 
property owned by them which is material to the business of the Company and 
the Subsidiaries, in each case free and clear of all liens, encumbrances and 
defects except such as are described in the Prospectus or such as do not 
materially affect the value of such property and do not interfere with the 
use made and proposed to be made of such property by the Company and the 
Subsidiaries; and any real property and buildings held under lease by the 
Company and the Subsidiaries are held by them

                                       6

<PAGE>

under valid, subsisting and enforceable leases with such exceptions as are 
not material and do not interfere with the use made and proposed to be made 
of such property and buildings by the Company and the Subsidiaries.

     (u)  No material labor dispute with the employees of the Company or any 
of the Subsidiaries exists or, to the knowledge of the Company, is imminent; 
and the Company is not aware of any existing, threatened or imminent labor 
disturbance by the employees of any of its principal suppliers, manufacturers 
or contractors that could result in any material adverse change in the 
condition, financial or otherwise, or in the earnings, business or operations 
of the Company and the Subsidiaries, taken as a whole.

     (v)  Each of the Company and the Subsidiaries is insured by insurers of 
recognized financial responsibility against such losses and risks and in such 
amounts as are prudent and customary in the business in which it is engaged; 
neither the Company nor the Subsidiaries has been refused any insurance 
coverage sought or applied for; and neither the Company nor the Subsidiaries 
has any reason to believe that it will not be able to renew its existing 
insurance coverage as and when such coverage expires or to obtain similar 
coverage from similar insurers as may be necessary to continue its business 
at a cost that would not materially and adversely affect the condition, 
financial or otherwise, or the earnings, business or operations of the 
Company and the Subsidiaries, taken as a whole, in each case except as 
described in or contemplated by the Prospectus.

     (w)  Neither the Company nor the Subsidiaries is in violation of any 
federal or state law or regulation relating to occupational safety and health 
and the Company and the Subsidiaries have received all permits, licenses or 
other approvals required of them under applicable federal and state 
occupational safety and health laws and regulations to conduct their 
respective businesses, and the Company and the Subsidiaries is in compliance 
with all terms and conditions of any such permit, license or approval, except 
any such violation of law or regulation, failure to receive required permits, 
licenses or other approvals or failure to comply with the terms and 
conditions of such permits, licenses or approvals which would not, singly or 
in the aggregate, result in a material adverse change in the condition, 
financial or otherwise, or in the earnings, business or operations of the 
Company and the Subsidiaries, taken as a whole.


                                      II.

     Each of the Selling Stockholders represents and warrants to and agrees 
with each of the Underwriters that:

     (a)  This Agreement has been duly authorized, executed and delivered by 
or on behalf of such Selling Stockholder.


                                       7

<PAGE>

     (b)  The execution and delivery by such Selling Stockholder of, and the 
performance by such Selling Stockholder of its obligations under, this 
Agreement, the Custody Agreement signed by such Selling Stockholder and 
_______________, as Custodian, relating to the deposit of the Shares to be sold 
by such Selling Stockholder (the "Custody Agreement") and the Power of 
Attorney appointing certain individuals as such Selling Stockholder's 
attorneys-in-fact to the extent set forth therein, relating to the 
transactions contemplated hereby and by the Registration Statement (the 
"Power of Attorney") will not contravene any provision of applicable law, or 
the certificate of incorporation or by-laws of such Selling Stockholder (if 
such Selling Stockholder is a corporation), or any agreement or other 
instrument binding upon such Selling Stockholder or any judgment, order or 
decree of any governmental body, agency or court having jurisdiction over 
such Selling Stockholder, and no consent, approval, authorization or order 
of, or qualification with, any governmental body or agency is required for 
the performance by such Selling Stockholder of its obligations under this 
Agreement or the Custody Agreement or Power of Attorney of such Selling 
Stockholder, except such as may be required by the securities or Blue Sky 
laws of the various states in connection with the offer and sale of the 
Shares.

     (c)  Such Selling Stockholder has, and on the Closing Date will have, 
valid title to the Shares to be sold by such Selling Stockholder and the 
legal right and power, and all authorization and approval required by law, to 
enter into this Agreement, the Custody Agreement and the Power of Attorney 
and to sell, transfer and deliver the Shares to be sold by such Selling 
Stockholder.

     (d)  The Custody Agreement and the Power of Attorney have been duly 
authorized, executed and delivered by such Selling Stockholder and are valid 
and binding agreements of such Selling Stockholder.

     (e)  All information furnished by or on behalf of such Selling 
Stockholder relating to such Selling Stockholder set forth in the 
Registration Statement or Prospectus is, and at the time the Registration 
Statement became or becomes, as the case may be, effective and at all times 
subsequent thereto up to and on the Closing Date, and on any later date on 
which Additional Shares are to be purchased, was or will be, true and correct 
and does not, and, at the time the Registration Statement became or becomes, 
as the case may be, effective and, at all times subsequent thereto up to and 
on the Closing Date, and on any later date on which Additional Shares are to 
be purchased, will not contain any untrue statement of a material fact or 
omit to state a material fact required to be stated therein or necessary to 
make such information not misleading.


                                     III.

     Each Seller, severally and not jointly, hereby agrees to sell to the
several Underwriters, and each Underwriter, upon the basis of the
representations and

                                       8

<PAGE>

warranties herein contained, but subject to the conditions hereinafter 
stated, agrees, severally and not jointly, to purchase from such Seller at 
$_________________ a share (the "Purchase Price") the number of Firm Shares 
(subject to such adjustments to eliminate fractional shares as you may 
determine) that bears the same proportion to the number of Firm Shares to be 
sold by such Seller as the number of Firm Shares set forth in Schedule II 
hereto opposite the name of such Underwriter bears to the total number of 
Firm Shares.

     On the basis of the representations and warranties contained in this 
Agreement, and subject to its terms and conditions, the Company agrees to 
sell to the U.S. Underwriters the Additional Shares, and the U.S. 
Underwriters shall have a one-time right to purchase, severally and not 
jointly, up to 750,000 Additional Shares at the Purchase Price.  Additional 
Shares may be purchased as provided in Article V hereof solely for the 
purpose of covering over-allotments made in connection with the offering of 
the Firm Shares.  If any Additional Shares are to be purchased, each U.S. 
Underwriter agrees, severally and not jointly, to purchase the number of 
Additional Shares (subject to such adjustments to eliminate fractional shares 
as you may determine) that bears the same proportion to the total number of 
Additional Shares to be purchased as the number of U.S. Firm Shares set forth 
in Schedule II hereto opposite the name of such U.S. Underwriter bears to the 
total number of U.S. Firm Shares.  The Additional Shares to be purchased by 
the U.S. Underwriters hereunder and the U.S. Firm Shares are hereinafter 
collectively referred to as the U.S. Shares.

     Each Seller hereby agrees that, without the prior written consent of 
Morgan Stanley & Co. Incorporated, it will not for a period of one hundred 
twenty (120) days after the date of the Prospectus, directly or indirectly, 
(i) offer, pledge, sell, contract to sell, sell any option or contract to 
purchase, purchase any option or contract to sell, grant any option, right or 
warrant to purchase, or otherwise transfer or dispose of shares of Common 
Stock or any securities convertible into or exercisable or exchangeable for 
Common Stock, or (ii) enter into any swap or similar agreement that 
transfers, in whole or in part, the economic risk of ownership of the Common 
Stock, whether any such transaction described in clause (i) or (ii) above is 
to be settled by delivery of Common Stock or such other securities, in cash 
or otherwise, other than (A) the Shares to be sold hereunder, (B) any shares 
of such Common Stock which may be issued pursuant to employee benefit plans 
or employee stock purchase plans in any such case only to the extent such 
security was outstanding on the date hereof and (C) options to purchase 
shares of Common Stock which may be granted from time to time by the Company 
pursuant to any employee, or director stock option plan or similar benefit 
plan existing on the date hereof, and (D) any shares of Common Stock issued 
or rights to receive such Common Stock under the 1995 Employee Stock Purchase 
Plan. 

     The Company has furnished or will furnish to you "lock-up" letters, in 
the form provided to the Company by counsel for the underwriters, signed by 
each of its

                                       9


<PAGE>

current officers and directors and each of its current holders of Common 
Stock acquired upon conversion of its Series C Preferred Stock.


                                       IV.

     The Sellers are advised by you that the Underwriters propose to make a 
public offering of their respective portions of the Shares as soon after the 
Registration Statement and this Agreement have become effective as in your 
judgment is advisable.  The Sellers are further advised by you that the 
Shares are to be offered to the public initially at $ ________________ a share 
(the public offering price) and to certain dealers selected by you at a price 
that represents a concession not in excess of $ _____________ a share under 
the public offering price, and that any Underwriter may allow, and such 
dealers may reallow, a concession, not in excess of $ _______________ a share, 
to any Underwriter or to certain other dealers.

     Each U.S. Underwriter hereby makes to and with the Sellers the 
representations and agreements of such U.S. Underwriter contained in the 
fifth and sixth paragraphs of Article III of the Agreement Between U.S. and 
International Underwriters of even date herewith.  Each International 
Underwriter hereby makes to and with the Sellers the representations and 
agreements of such International Underwriter contained in the seventh, 
eighth, ninth and tenth paragraphs of Article III of such Agreement.  Copies 
of such fifth, sixth, seventh, eighth, ninth and tenth paragraphs of Article 
III of the Agreement Between U.S. and International Underwriters are attached 
hereto as Schedule V.


                                       V.

     Payment for the Firm Shares to be sold by each Seller shall be made in 
Federal or other funds immediately available in New York City against 
delivery of such Firm Shares for the respective accounts of the several 
Underwriters at 10:00 A.M. New York City time, on ________________, or at such 
other time on the same or such other date, not later than ________________, as 
shall, be designated in writing by you.  The time and date of each such 
payment are hereinafter referred to as the Closing Date.

     Payment for any Additional Shares to be sold by the Company shall be 
made in Federal or other funds immediately available in New York City against 
delivery of such Additional Shares for the respective accounts of the U.S. 
Underwriters, at 10:00 A.M., New York City time, on such date (which may be 
the same as the Closing Date but shall in no event be earlier than the 
Closing Date nor later than ten (10) business days after the giving of the 
notice hereinafter referred to) as shall be designated in a written notice 
from you to the Company of your determination, on behalf of the Underwriters, 
to purchase a number, specified in said notice, of Additional Shares, or on 
such other date, in any event not later than ________________, as shall be 
designated in



                                      10

<PAGE>



writing by you. The time and date of such payment are hereinafter referred to 
as the Option Closing Date.  The notice of the determination to exercise the 
option to purchase Additional Shares and of the Option Closing Date may be 
given at any time within thirty (30) days after the date of this Agreement.

     Certificates for the Firm Shares and Additional Shares shall be in 
definitive form and registered in such names and in such denominations as you 
shall request in writing not later than two (2) full business days prior to 
the Closing Date or the Option Closing Date, as the case may be.  The 
certificates evidencing the Firm Shares and Additional Shares shall be 
delivered to you on the Closing Date or the Option Closing Date, as the case 
may be, for the respective accounts of the several Underwriters, with any 
transfer taxes payable in connection with the transfer of the Shares to the 
Underwriters duly paid, against payment of the purchase price therefor.


                                       VI.

     The obligations of the Sellers to sell the Shares to the Underwriters 
and the several obligations of the Underwriters to purchase and pay for the 
Shares on the Closing Date are subject to the condition that the Registration 
Statement shall have become effective not later than the date hereof.

     The several obligations of the Underwriters hereunder are subject to the 
following further conditions:

     (a)  Subsequent to the execution and delivery of this Agreement and 
prior to the Closing Date:

          (i)  there shall not have occurred any downgrading, nor shall any 
notice have been given of any intended or potential downgrading or of any 
review for a possible change that does not indicate the direction of the 
possible change, in the rating accorded any of the Company's securities by 
any "nationally recognized statistical rating organization," as such term is 
defined for purposes of Rule 436(g)(2) under the Securities Act, and

         (ii)  there shall not have occurred any change, or any development 
involving a prospective change, in the condition, financial or otherwise, or 
in the earnings, business or operations, of the Company and the Subsidiaries, 
taken as a whole, from that set forth in the Registration Statement, that, in 
your judgment, is material and adverse and that makes it, in your judgment, 
impracticable to market the Shares on the terms and in the manner 
contemplated in the Prospectus.

     (b)  The Underwriters shall have received on the Closing Date a 
certificate, dated the Closing Date and signed by an executive officer of the 
Company, to the effect set forth in clause (a)(i) above and to the effect 
that the representations and 

                                      11

<PAGE>

warranties of the Company contained in this Agreement are true and correct as 
of the Closing Date and that the Company has complied with all of the 
agreements and satisfied all of the conditions on its part to be performed or 
satisfied hereunder on or before the Closing Date.  The officer signing and 
delivering such certificate may rely upon the best of his knowledge as to 
proceedings threatened.

     (c)  You shall have received on the Closing Date an opinion of Wilson 
Sonsini Goodrich & Rosati, counsel for the Company, dated the Closing Date, 
to the effect that:

          (i)  the Company has been duly incorporated, is validly existing as 
a corporation in good standing under the laws of the jurisdiction of its 
incorporation, has the corporate power and authority to own its property and 
to conduct its business as described in the Prospectus and is duly qualified 
to transact business as a foreign corporation under the corporation laws of, 
and is in good standing as such, in each jurisdiction in the United States in 
which it conducts material business or owns or leases material property, 
except to the extent that the failure to be so qualified or be in good 
standing would not have a material adverse effect on the Company and the 
Subsidiaries, taken as a whole;

         (ii)  The Subsidiaries has been duly incorporated, is validly 
existing as a corporation in good standing under the laws of the jurisdiction 
of its incorporation, has the corporate power and authority to own its 
property and to conduct its business as described in the Prospectus;

        (iii)  all of the issued shares of capital stock of the Subsidiaries 
have been duly and validly authorized and issued, are fully paid and 
non-assessable, and owned directly or indirectly by the Company, free and 
clear of all liens, encumbrances, equities or claims;

         (iv)  the authorized capital stock of the Company conforms as to 
legal matters to the description thereof contained under the caption 
"Description of Capital Stock" in the Prospectus and the authorized and 
outstanding capital stock of the Company, as of the dates for which such 
information is given in the Prospectus, is as contained under the caption 
"Capitalization" in the Prospectus;

          (v)  the shares of Common Stock outstanding prior to the issuance 
of the Shares have been duly authorized and are validly issued, 
non-assessable and, to such counsel's knowledge, fully paid;

         (vi)  the Shares have been duly authorized and, when issued and 
delivered in accordance with the terms of this Agreement, will be validly 
issued, fully paid and non-assessable, and the issuance of such Shares will 
not be subject to any preemptive right or, to such counsel's knowledge, 
rights of first refusal or similar rights;

                                      12


<PAGE>

        (vii)  No shares of Common Stock are required pursuant to any 
agreement or other right to be registered under the Registration Statement, 
and no person or entity has any right to cause Common Stock to be registered 
under the Registration Statement, which rights have not been validly waived.

       (viii)  this Agreement has been duly authorized, executed and delivered 
by the Company;

         (ix)  the execution and delivery by the Company of, and the
performance by the Company of its obligations under, this Agreement will not
contravene any provision of applicable law or the certificate of incorporation
or by laws of the Company or, to such counsel's knowledge, any agreement or
other instrument binding upon the Company or the Subsidiaries that is an exhibit
to the Registration Statement, or, to such counsel's knowledge, any judgment,
order or decree of any governmental body, agency or court having jurisdiction
over the Company or the Subsidiaries, and no consent, approval, authorization or
order of or qualification with any governmental body or agency is required for
the performance by the Company of its obligations under this Agreement, except
such as may be required by the securities or Blue Sky laws of the various states
in connection with the offer and sale of the Shares by the U.S. Underwriters;

          (x)  the statements (1) in the Prospectus under the captions
"Description of Capital Stock," and, with respect to the description of this
Agreement, "Underwriters," and (2) in the Registration Statement in Items 14 and
15, in each case insofar as such statements constitute summaries of the legal
matters, documents or proceedings referred to therein, fairly present the
information called for with respect to such legal matters, documents and
proceedings and fairly summarize the matters referred to therein in all material
respects;

         (xi)  to such counsel's knowledge, there is no legal or governmental
proceeding pending or threatened to which the Company or any of the Subsidiaries
is a party or to which any of the properties of the Company or the Subsidiaries
is subject that is required to be described in the Registration Statement or the
Prospectus and is not so described and, to such counsel's knowledge, there is no
contract or other document that is required to be described in the Registration
Statement or the Prospectus or to be filed as an exhibit to the Registration
Statement that is not described or filed as required; and

        (xii)  the Company is not an "investment company" or an entity
"controlled" by an "investment company," as such terms are defined in the
Investment Company Act of 1940, as amended.

     In addition, such counsel shall state that in addition to rendering legal
advice and assistance to the Company in the course of the preparation of the
Registration Statement and the Prospectus, involving, among other things,
discussions and

                                      13


<PAGE>

inquiries concerning various legal matters and the review of certain 
corporate records, documents and proceedings (in addition to those described 
in paragraphs (i) through (xii) above), such counsel also participated in 
conferences with certain officers and other representatives of the Company, 
including its independent certified public accountants and with the 
Underwriters and their counsel, at which the contents of the Registration 
Statement and the Prospectus and related matters were discussed; provided, 
however, that such counsel may state they have not independently verified the 
accuracy, completeness or fairness of the information contained in the 
Registration Statement and Prospectus.

     Such counsel shall also state that based upon its participation as 
described in the preceding paragraph, (i) they believe that the Registration 
Statement and the Prospectus (except for financial statements and schedules 
and other financial and statistical data derived therefrom as to which they 
need express no belief complied as to form in all material respects with the 
requirements of the Securities Act and the rules and regulations of the 
Commission thereunder and (ii) they confirm that they have no reason to 
believe that (except for financial statements and schedules and other 
financial and statistical data derived therefrom as to which they need 
express no belief) the Registration Statement, as of its effective date, 
contained any untrue statement of a material fact or omitted to state a 
material fact required to be stated therein or necessary to make the 
statements therein not misleading or that (except for financial statements 
and schedules and other financial and statistical data derived therefrom as 
to which they need express no belief) the Prospectus, on the effective date 
and such date or dates as such opinion is delivered, contains any untrue 
statement of a material fact or omits to state a material fact necessary in 
order to make the statements therein, in light of the circumstances under 
which they were made, not misleading.

     (d)  The Underwriters shall have received on the Closing Date on opinion 
of counsel for the Selling Stockholders, dated the Closing Date, to the 
effect that:

          (i) this Agreement has been duly authorized, executed and delivered
by or on behalf of each of the Selling Stockholders;

         (ii) the execution and delivery by each Selling Stockholder of, and 
the performance by such Selling Stockholder of its obligations under, this 
Agreement and the Custody Agreement and Powers of Attorney of such Selling 
Stockholder will not contravene any provision of applicable law, or the 
certificate of incorporation or by-laws of such Selling Stockholder (if such 
Selling Stockholder is a corporation), or, to the best of such counsel's 
knowledge, any agreement or other instrument binding upon such Selling 
Stockholder or, to the best of such counsel's knowledge, any judgment, order 
or decree of any governmental body, agency or court having jurisdiction over 
such Selling Stockholder, and no consent, approval, authorization or order 
of, or qualification with, any governmental body or agency is required for 
the performance by such Selling Stockholder of its obligations under this 
Agreement or

                                      14

<PAGE>

the Custody Agreement or Power of Attorney of such Selling Stockholder, 
except such as may be required by the securities or Blue Sky laws of the 
various states in connection with offer and sale of the Shares;

          (iii) each of the Selling Stockholders has valid title to the 
Shares to be sold by such Selling Stockholder and the legal right and power, 
and all authorization and approval required by law, to enter into this 
Agreement and the Custody Agreement and Power of Attorney of such Selling 
Stockholder and to sell, transfer and deliver the Shares to be sold by such 
Selling Stockholder;

          (iv) the Custody Agreement and the Power of Attorney of each 
Selling Stockholder have been duly authorized, executed and delivered by such 
Selling Stockholder and are valid and binding agreements of such Selling 
Stockholder;

          (v) delivery of the Shares to be sold by each Selling Stockholder 
pursuant to this Agreement will pass title to such Shares free and clear of 
any security interests, claims, liens, equities and other encumbrances; and

         (vi) such counsel (A) is of the opinion that the Registration 
Statement and Prospectus (except for financial statements and schedules and 
other financial and statistical data included therein as to which such 
counsel need not express any opinion) comply as to form in all material 
respects with the Securities Act and the applicable rules and regulations of 
the Commission thereunder, (B) has no reason to believe that (except for 
financial statements and schedules and other financial and statistical data 
as to which such counsel need not express any belief) the Registration 
Statement and the prospectus included therein at the time the Registration 
Statement became effective contained any untrue statement of a material fact 
or omitted to state a material fact required to be stated therein or 
necessary to make the statements therein not misleading and (C) has no reason 
to believe that (except for financial statements and schedules and other 
financial and statistical data as to which such counsel need not express any 
belief) the Prospectus contains any untrue statement of a material fact or 
omits to state a material fact necessary in order to make the statements 
therein, in the light of the circumstances under which they were made, not 
misleading.

     (e)  You shall have received on the Closing Date an opinion of Gray Cary 
Ware & Freidenrich, counsel for the Underwriters, dated the Closing Date, 
covering the matters referred to in subparagraphs (vi), (viii) and (x) (but 
only as to the statements in the Prospectus under the captions "Description 
of Capital Stock" and "Underwriters") of paragraph (c) above, and shall 
contain a statement substantially similar to that contained in clause (ii) of 
the final paragraph of paragraph (c) above.

     With respect to the last paragraph of paragraph (c) above, Wilson Sonsini
Goodrich & Rosati and Gray Cary Ware & Freidenrich may make such statement

                                      15

<PAGE>

based upon their participation in the preparation of the Registration 
Statement and Prospectus and any amendments or supplements thereto (other 
than the documents incorporated by reference) and upon review and discussion 
of the contents thereof, but are without independent check or verification 
except as specified.

     The opinion of Wilson Sonsini Goodrich & Rosati described in paragraph 
(c) above shall be rendered to you at the request of the Company and shall so 
state therein.

     (f)  You shall have received, on each of the date hereof and the Closing 
Date, a letter dated the date hereof or the Closing Date, as the case may be, 
in form and substance satisfactory to you, from Ernst & Young LLP, 
independent public accountants, containing statements and information of the 
type ordinarily included in accountants' "comfort letters" to underwriters 
with respect to the financial statements and certain financial information 
contained in, or incorporated by reference into, the Registration Statement 
and the Prospectus.

     (g)  The "lock-up" letters between you and certain stockholders, 
officers and directors of the Company relating to sales of shares of Common 
Stock of the Company or any securities convertible into or exercisable or 
exchangeable for such Common Stock, delivered to you on or before the date 
hereof, and the Lock-up Agreements, shall be in full force and effect on the 
Closing Date.

     (h)  The Company shall have complied with the provisions of Section 
VI.(a) hereof with respect to the furnishing of Prospectuses on the business 
day next succeeding the date of this Agreement.

     The several obligations of the U.S. Underwriters to purchase Additional 
Shares hereunder are subject to the delivery to the U.S. Representatives on 
the Option Closing Date of such documents as they may reasonably request with 
respect to the good standing of the Company, the due authorization and 
issuance of the Additional Shares, other matters related to the issuance of 
the Additional Shares and an opinion of counsel to the Company in form and 
substance satisfactory to counsel for the Underwriters.


                                      VII.

     In further consideration of the agreements of the Underwriters herein 
contained, the Company covenants as follows:

     (a)  To furnish you, without charge, five (5) signed copies of the
Registration Statement (including exhibits thereto) and to each other
Underwriter a conformed copy of the Registration Statement (without exhibits
thereto) and, during the period mentioned in paragraph (c) below, as many copies
of the Prospectus and any

                                      16

<PAGE>

supplements and amendments thereto or to the Registration Statement as you 
may reasonably request for the purposes contemplated by the Securities Act.  
In the case of the Prospectus, to furnish copies of the Prospectus in New 
York City on the business day next succeeding the date of this Agreement and 
in London within two (2) business days of the date of this Agreement, in such 
quantities as you reasonably request.

     (b)  Before amending or supplementing the Registration Statement or the 
Prospectus, to furnish to you a copy of each such proposed amendment or 
supplement and to file no such proposed amendment or supplement to which you 
reasonably object and to file with the Commission within the applicable 
period specified in Rule 424(b) under the Securities Act any prospectus 
required to be filed pursuant to such Rule.

     (c)  If, during such period after the first date of the public offering 
of the Shares as in the reasonable opinion of your counsel the Prospectus is 
required by law to be delivered in connection with sales by an Underwriter or 
dealer, any event shall occur or condition exist as a result of which it is 
necessary to amend or supplement the Prospectus in order to make the 
statements therein, in the light of the circumstances when the Prospectus is 
delivered to a purchaser, not misleading, or if, in the reasonable opinion of 
your counsel, it is necessary to amend or supplement the Prospectus to comply 
with law, forthwith to prepare, file with the Commission and furnish, at its 
own expense, to the Underwriters and to the dealers (whose names and 
addresses you will furnish to the Company) to which Shares may have been sold 
by you on behalf of the Underwriters and to any other dealers upon reasonable 
request, either amendments or supplements to the Prospectus so that the 
statements in the Prospectus as so amended or supplemented will not, in the 
light of the circumstances when the Prospectus is delivered to a purchaser, 
be misleading or so that the Prospectus, as amended or supplemented, will 
comply with law.

     (d)  To use reasonable efforts to comply with applicable provisions of 
the securities or Blue Sky laws of such jurisdictions as you shall reasonably 
request.

     (e)  To make generally available to the Company's security holders and 
to you as soon as practicable an earning statement covering the twelve-month 
period ending ___________________ that satisfies the provisions of Section 
11(a) of the Securities Act and the rules and regulations of the Commission 
thereunder.

                                      VIII.


     Whether or not the transactions contemplated in this Agreement are 
consummated, the Sellers agree to pay all expenses incident to the 
performance of its obligations under this Agreement, including (i) the 
preparation and filing of the

                                      17

<PAGE>

 Registration Statement and the Prospectus and all amendments and supplements 
thereto, (ii) the preparation, issuance and delivery of the Shares, including 
any transfer taxes payable in connection with the transfer of the Shares to 
the Underwriters, (iii) the fees and disbursements of the Company's and the 
Selling Stockholder's counsel and accountants, (iv) the qualification of the 
Shares under state securities or Blue Sky laws in accordance with the 
provisions of paragraph (d) above, including filing fees and the fees and 
disbursements of counsel for the Underwriters in connection therewith and in 
connection with the preparation of any Blue Sky or Legal Investment 
Memoranda, (v) the printing and delivery to the Underwriters, in quantities 
as hereinabove stated, of copies of the Registration Statement and all 
amendments and exhibits thereto and of each preliminary prospectus and the 
Prospectus and any amendments or supplements thereto, (vi) the printing and 
delivery to the Underwriters of copies of any Blue Sky or Legal Investment 
Memoranda, (vii) the filing fees and expenses, if any, incurred with respect 
to any filing with, and review by, the National Association of Securities 
Dealers, Inc., made in connection with the offering of the Shares, (viii) any 
expenses incurred by the Company in connection with a "road show" 
presentation to potential investors and (ix) the listing of the Common Stock 
on the Nasdaq National Market.


     The provisions of this Section shall not supersede or otherwise affect 
any agreement that the Sellers may otherwise have for allocation of such 
expenses among themselves.


                                       IX.

     (a)  The Company agrees to indemnify and hold harmless each Underwriter 
and each person, if any, who controls any Underwriter within the meaning of 
either Section 15 of the Securities Act or Section 20 of the Securities 
Exchange Act of 1934, as amended (the "Exchange Act"), from and against any 
and all losses, claims, damages and liabilities (including, without 
limitation, any legal or other expenses reasonably incurred by any 
Underwriter or any such controlling person in connection with defending or 
investigating any such action or claim) caused by any untrue statement or 
alleged untrue statement of a material fact contained in the Registration 
Statement or any amendment thereof, any preliminary prospectus or the 
Prospectus (as amended or supplemented if the Company shall have furnished 
any amendments or supplements thereto), or caused by any omission or alleged 
omission to state therein a material fact required to be stated therein or 
necessary to make the statements therein not misleading, except insofar as 
such losses, claims, damages or liabilities are caused by any such untrue 
statement or omission or alleged untrue statement or omission based upon 
information relating to any Underwriter furnished to the Company in writing 
by such Underwriter through you expressly for use therein; PROVIDED, HOWEVER, 
that the foregoing indemnity agreement with respect to any preliminary 
prospectus shall not inure to the benefit of any Underwriter from whom the 
person asserting any such losses, claims, damages or liabilities purchased

                                      18

<PAGE>

Shares, or any person controlling such Underwriter, if a copy of the 
Prospectus (as then amended or supplemented if the Company shall have 
furnished any amendments or supplements thereto) was not sent or given by or 
on behalf of such Underwriter to such person, if required by law so to have 
been delivered, at or prior to the written confirmation of the sale of the 
Shares to such person, and if the Prospectus (as so amended or supplemented) 
would have cured the defect giving rise to such loss, claim, damage or 
liability.

     (b)  Each Selling Stockholder agrees, severally and not jointly, to 
indemnify and hold harmless the Company, its directors, its officers who sign 
the Registration Statement and each person, if any, who controls the Company 
within the meaning of either Section 15 of the Securities Act or Section 20 
of the Exchange Act, and each Underwriter and each person, if any, who 
controls any Underwriter within the meaning of either Section 15 of the 
Securities Act or Section 20 of the Exchange Act from and against any and all 
losses, claims, damages and liabilities (including, without limitation, any 
legal or other expenses reasonably incurred in connection with defending or 
investigating any such action or claim) caused by any untrue statement or 
alleged untrue statement of a material fact contained in the Registration 
Statement or any amendment thereof, any preliminary prospectus or the 
Prospectus (as amended or supplemented if the Company shall have furnished 
any amendments or supplements thereto), or caused by any omission or alleged 
omission to state therein a material fact required to be stated therein or 
necessary to make the statements therein not misleading, but only with 
reference to information relating to such Selling Stockholder furnished in 
writing by or on behalf of such Selling Stockholder expressly for use in the 
Registration Statement, any preliminary prospectus, the Prospectus or any 
amendments or supplements thereto.

     (c)  Each Underwriter agrees, severally and not jointly, to indemnify 
and hold harmless the Company, its directors, its officers who sign the 
Registration Statement and each person, if any, who controls the Company 
within the meaning of either Section 15 of the Securities Act or Section 20 
of the Exchange Act from and against any and all losses, claims, damages and 
liabilities (including, without limitation, any legal or other expenses 
reasonably incurred in connection with defending or investigating any such 
action or claim) caused by any untrue statement or alleged untrue statement 
of a material fact contained in the Registration Statement or any amendment 
thereof, any preliminary prospectus or the Prospectus (as amended or 
supplemented if the Company shall have furnished any amendments or 
supplements thereto), or caused by any omission or alleged omission to state 
therein a material fact required to be stated therein or necessary to make 
the statements therein not misleading, but only with reference to information 
relating to such Underwriter furnished to the Company in writing by such 
Underwriter through you expressly for use in the Registration Statement, any 
preliminary prospectus, the Prospectus or any amendments or supplements 
thereto.

                                      19

<PAGE>

     (d)  In case any proceeding (including any governmental investigation)
shall be instituted involving any person in respect of which indemnity may be
sought pursuant to any of the three preceding paragraphs, such person (the
"indemnified party") shall promptly notify the person against whom such
indemnity may be sought (the "indemnifying party") in writing and the
indemnifying party, upon request of the indemnified party, shall retain counsel
reasonably satisfactory to the indemnified party to represent the indemnified
party and any others the indemnifying party may designate in such proceeding 
and shall pay the fees and disbursements of such counsel related to such 
proceeding. In any such proceeding, any indemnified party shall have the 
right to retain its own counsel, but the fees and expenses of such counsel 
shall be at the expense of such indemnified party unless (i) the indemnifying 
party and the indemnified party shall have mutually agreed to the retention 
of such counsel or (ii) the named parties to any such proceeding (including 
any impleaded parties) include both the indemnifying party and the 
indemnified party and representation of both parties by the same counsel 
would be inappropriate due to actual or potential differing interests between 
them.  It is understood that the indemnifying party shall not, in respect of 
the legal expenses of any indemnified party in connection with any proceeding 
or related proceedings in the same jurisdiction, be liable for (i) the fees 
and expenses of more than one separate firm (in addition to any local 
counsel) for all Underwriters and all persons, if any, who control any 
Underwriter within the meaning of either Section 15 of the Securities Act or 
Section 20 of the Exchange Act, (ii) the fees and expenses of more than one 
separate firm (in addition to any local counsel) for the Company, its 
directors, its officers who sign the Registration Statement and each person, 
if any, who controls the Company within the meaning of either such Section 
and (iii) the fees and expenses of more than one separate firm (in addition 
to any local counsel) for all Selling Stockholders and all persons, if any, 
who control any Selling Stockholder within the meaning of either such 
Section, and that all such fees and expenses shall be reimbursed as they are 
incurred.  In the case of any such separate firm for the Underwriters and 
such control persons of Underwriters, such firm shall be designated in 
writing by Morgan Stanley & Co. Incorporated.  In the case of any such 
separate firm for the Company, and such directors, officers and control 
persons of the Company, such firm shall be designated in writing by the 
Company.  In the case of any such separate firm for the Selling Stockholders 
and such control persons of any Selling Stockholders, such firm shall be 
designated in writing by the persons named as attorneys-in-fact for the 
Selling Stockholders under the Powers of Attorney.  The indemnifying party 
shall not be liable for any settlement of any proceeding effected without its 
written consent, but if settled with such consent or if there be a final 
judgment for the plaintiff, the indemnifying party agrees to indemnify the 
indemnified party from and against any loss or liability by reason of such 
settlement or judgment.  Notwithstanding the foregoing sentence, if at any 
time an indemnified party shall have requested an indemnifying party to 
reimburse the indemnified party for fees and expenses of counsel as 
contemplated by the second and third sentences of this paragraph, the 
indemnifying party agrees that it shall be liable for any settlement of any 
proceeding effected without its written consent if (i) such settlement

                                      20
<PAGE>

is entered into more than thirty (30) days after receipt by such indemnifying 
party of the aforesaid request and (ii) such indemnifying party shall not 
have reimbursed the indemnified party in accordance with such request prior 
to the date of such settlement.  No indemnifying party shall, without the 
prior written consent of the indemnified party, effect any settlement of any 
pending or threatened proceeding in respect of which such indemnified party 
is or could have been a party and indemnity could have been sought hereunder 
by such indemnified party, unless such settlement includes an unconditional 
release of such indemnified party from all liability on claims that are the 
subject matter of such proceeding.

     (e)  If the indemnification provided for in paragraphs (a), (b) and/or (c)
of this Article IX is unavailable to an indemnified party or insufficient in
respect of any losses, claims, damages or liabilities referred to therein, then
each indemnifying party under such paragraph, in lieu of indemnifying such
indemnified party thereunder, shall contribute to the amount paid or payable by
such indemnified party as a result of such losses, claims, damages or
liabilities (i) in such proportion as is appropriate to reflect the relative
benefits received by the indemnifying party or parties on the one hand and the
indemnified party or parties on the other hand from the offering of the Shares
or (ii) if the allocation provided by clause (i) above is not permitted by
applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause (i) above but also the relative fault of
the indemnifying party or parties on the one hand and of the indemnified party
or parties on the other hand in connection with the statements or omissions that
resulted in such losses, claims, damages or liabilities, as well as any other
relevant equitable considerations.  The relative benefits received by the
Sellers on the one hand and the Underwriters on the other hand in connection
with the offering of the Shares shall be deemed to be in the same respective
proportions as the net proceeds from the offering of the Shares (before
deducting expenses) received by the Sellers and the total underwriting discounts
and commissions received by the Underwriters, in each case as set forth in the
table on the cover of the Prospectus, bear to the aggregate public offering
price of the Shares.  The relative fault of the Sellers on the one hand and the
Underwriters on the other hand shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact relates to information
supplied by the Sellers or by the Underwriters and the parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
statement or omission.  The Underwriters' respective obligations to contribute
pursuant to this Article IX are several in proportion to the respective number
of Shares they have purchased hereunder, and not joint.

     (f)  The Sellers and the Underwriters agree that it would not be just or
equitable if contribution pursuant to this Article IX were determined by pro
rata allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation that does not take account of the
equitable considerations referred to in paragraph (e) of this Section IX.  The
amount paid or 
                                      21
<PAGE>

payable by an indemnified party as a result of the losses,
claims, damages and liabilities referred to in the immediately preceding
paragraph shall be deemed to include, subject to the limitations set forth
above, any legal or other expenses reasonably incurred by such indemnified party
in connection with investigating or defending any such action or claim. 
Notwithstanding the provisions of this Article IX, no Underwriter shall be
required to contribute any amount in excess of the amount by which the total
price at which the Shares underwritten by it and distributed to the public were
offered to the public exceeds the amount of any damages that such Underwriter
has otherwise been required to pay by reason of such untrue or alleged untrue
statement or omission or alleged omission.  No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation.  The remedies provided for in this Article IX are
not exclusive and shall not limit any rights or remedies which may otherwise be
available to any indemnified party at law or in equity.

     (g)  The indemnity and contribution provisions contained in this Article IX
and the representations and warranties of the Company and the Selling
Stockholders contained in this Agreement shall remain operative and in full
force and effect regardless of (i) any termination of this Agreement, (ii) any
investigation made by or on behalf of any Underwriter, or any person controlling
any Underwriter, any Selling Stockholder or any person controlling any Selling
Stockholder or the Company, its officers or directors or any person controlling
the Company and (iii) acceptance of and payment for any of the Shares.


                                       X.

     This Agreement shall be subject to termination by notice given by you to
the Company, if (a) after the execution and delivery of this Agreement and prior
to the Closing Date (i) trading generally shall have been suspended or
materially limited on or by, as the case may be, any of the New York Stock
Exchange, the American Stock Exchange, the National Association of Securities
Dealers, Inc., the Chicago Board of Options Exchange, the Chicago Mercantile
Exchange or the Chicago Board of Trade, (ii) trading of any securities of the
Company shall have been suspended on any exchange or in any over-the-counter
market, (iii) a general moratorium on commercial banking activities in New York
shall have been declared by either Federal or New York State authorities, or
(iv) there shall have occurred any outbreak or escalation of hostilities or any
change in financial markets or any calamity or crisis that, in your judgment, is
material and adverse and (b) in the case of any of the events specified in
clauses (a)(i) through (iv), such event singly or together with any other such
event makes it, in your judgment, impracticable to market the Shares on the
terms and in the manner contemplated in the Prospectus.

                                      22
<PAGE>


                                       XI.

     This Agreement shall become effective upon the execution and delivery
hereof by the parties hereto.

     If, on the Closing Date or the Option Closing Date, as the case may be, any
one or more of the Underwriters shall fail or refuse to purchase Shares that 
it or they have agreed to purchase hereunder on such date, and the aggregate 
number of Shares which such defaulting Underwriter or Underwriters agreed but 
failed or refused to purchase is not more than one-tenth of the aggregate 
number of the Shares to be purchased on such date, the other Underwriters 
shall be obligated severally in the proportions that the number of Firm 
Shares set forth opposite their respective names in Schedules II and III 
bears to the aggregate number of Firm Shares set forth opposite the names of 
all such non-defaulting Underwriters, or in such other proportions as you may 
specify, to purchase the Shares which such defaulting Underwriter or 
Underwriters agreed but failed or refused to purchase on such date; PROVIDED 
that in no event shall the number of Shares that any Underwriter has agreed 
to purchase pursuant to Article III be increased pursuant to this Article XI 
by an amount in excess of one-ninth of such number of Shares without the 
written consent of such Underwriter.  If, on the Closing Date or the Option 
Closing Date, as the case may be, any Underwriter or Underwriters shall fail 
or refuse to purchase Shares and the aggregate number of Shares with respect 
to which such default occurs is more than one-tenth of the aggregate number 
of Shares to be purchased on such date, and arrangements satisfactory to you, 
the Company and the Selling Stockholders for the purchase of such Shares are 
not made within thirty-six (36) hours after such default, this Agreement 
shall terminate without liability on the part of any non-defaulting 
Underwriter or the Company.  In any such case either you or the relevant 
Sellers shall have the right to postpone the Closing Date or the Option 
Closing Date, as the case may be, but in no event for longer than seven (7) 
days, in order that the required changes, if any, in the Registration 
Statement and in the Prospectus or in any other documents or arrangements may 
be effected. Any action taken under this paragraph shall not relieve any 
defaulting Underwriter from liability in respect of any default of such 
Underwriter under this Agreement.

     If this Agreement shall be terminated by the Underwriters, or any of them,
because of any failure or refusal on the part of any Seller to comply with the
terms or to fulfill any of the conditions of this Agreement, or if for any
reason any Seller shall be unable to perform its obligations under this
Agreement, the Sellers will reimburse the Underwriters or such Underwriters as
have so terminated this Agreement with respect to themselves, severally, for all
expenses (including the fees and disbursements of their counsel) reasonably
incurred by such Underwriters in connection with this Agreement or the offering
contemplated hereunder.

                                      23
<PAGE>

     This Agreement may be signed in two or more counterparts, each of which
shall be an original, with the same effect as if the signatures thereto and
hereto were upon the same instrument.

     This Agreement shall be governed by and construed in accordance with the
internal laws of the State of New York.

                                       Very truly yours,

                                       NETSCAPE COMMUNICATIONS 
                                       CORPORATION

                                       By:
                                          -------------------------------------
                                       Title:
                                             ----------------------------------

Accepted,               , 1996         The Selling Stockholders named in 
        ----------------               Schedule I hereto, acting severally

Morgan Stanley & Co. Incorporated
                                       By:
                                         --------------------------------------
Deutsche Morgan Grenfell Inc.                 Attorney-in-Fact
Goldman, Sachs & Co.
Hambrecht & Quist LLC

Acting severally on behalf of themselves and the
  several U.S. Underwriters named in Schedule II herein.

By Morgan Stanley & Co. Incorporated


By:
  --------------------------------------------

Morgan Stanley & Co. International Limited
Deutsche Morgan Grenfell Inc.
Goldman, Sachs International
Hambrecht & Quist LLC


                                      24
<PAGE>

Acting severally on behalf of themselves and the
  several International Underwriters named in
  Schedule III herein.

By Morgan Stanley & Co. International Limited


By:
  ---------------------------------------------

                                      25
<PAGE>

                             SCHEDULE I

                        SELLING STOCKHOLDERS


                                       Number of Firm 
Name                                  Shares To Be Sold 
- ----                                  ------------------

Adobe Systems, Incorporated                888,890

TCI Netscape Holdings, Inc.              1,000,000

Knight-Ridder Investment Company           888,892

The Hearst Corporation                     200,000
                                         ----------
                    Total                2,977,782

                                      26
<PAGE>

                              SCHEDULE II

                           U.S. Underwriters
                           -----------------


                                                                 Number of 
                                                              U.S. Firm Shares 
 Underwriter                                                  To Be Purchased 
 -----------                                                  ----------------
 
Morgan Stanley & Co. Incorporated . . . . . . . . . . . . 

Deutsche Morgan Grenfell Inc. . . . . . . . . . . . . . . 
 
Goldman, Sachs & Co.  . . . . . . . . . . . . . . . . . . 

Hambrecht & Quist LLC . . . . . . . . . . . . . . . . . . 

      Total U.S. Firm Shares . . . . . . . . . . . . . . . 

                                      27
<PAGE>

                                  SCHEDULE III



                                                                 Number of
                                                            International Shares
 Underwriter                                                  To Be Purchased 
 -----------                                                --------------------
 
 Morgan Stanley & Co. Incorporated . . . . . . . . . . . . 

 Deutsche Morgan Grenfell Inc. . . . . . . . . . . . . . . 

 Goldman Sachs International.  . . . . . . . . . . . . . . 

 Hambrecht & Quist LLC . . . . . . . . . . . . . . . . . . 

 Total International Shares  . . . . . . . . . . . . . . . 

                                      28
<PAGE>

                                   SCHEDULE IV

               Copies of Paragraphs 5-10 of Article III of the
             Agreement Between U.S. and International Underwriters
             _____________________________________________________

     Each U.S. Underwriter represents that it has not offered or sold, and
agrees not to offer or sell, any Shares, directly or indirectly, in any province
or territory of Canada in contravention of the securities laws thereof and,
without limiting the generality of the foregoing, represents that any offer of
Shares in Canada will be made only pursuant to an exemption from the requirement
to file a prospectus in the province or territory of Canada in which such offer
is made.  Each U.S. Underwriter further agrees to send to any dealer who
purchases from it any of the Shares a notice stating in substance that, by
purchasing such Shares, such dealer represents and agrees that it has not
offered or sold, and will not offer or sell, directly or indirectly, any of such
Shares in any province or territory of Canada or to, or for the benefit of, any
resident of any province or territory of Canada in contravention of the
securities laws thereof and that any offer of Shares in Canada will be made only
pursuant to an exemption from the requirement to file a prospectus in the
province or territory of Canada in which such offer is made, and that such
dealer will deliver to any other dealer to whom it sells any of such Shares a
notice containing substantially the same statement as is contained in this
sentence.

     The Underwriters understand that no action has been or will be taken in any
jurisdiction by the Underwriters or the Company that would permit a public
offering of the Shares, or possession or distribution of the Prospectus (as
defined in the Underwriting Agreement), in preliminary or final form, in any
jurisdiction where, or in any circumstances in which, action for that purpose is
required, other than the United States.

     Each International Underwriter agrees that it will comply with all
applicable laws and regulations, and make or obtain all necessary filings,
consents or approvals, in each jurisdiction in which it purchases, offers, sells
or delivers Shares (including, without limitation, any applicable requirements
relating to the delivery of the international prospectus, in preliminary or
final form), in each case at its own expense.  In connection with sales of and
offers to sell Shares made by it, such International Underwriter will either
furnish to each person to whom any such sale or offer is made a copy of the then
current international prospectus (in preliminary or final form and as then
amended or supplemented if the Company shall have furnished any amendments or
supplements thereto), or inform such person that such international prospectus,
in preliminary or final form, will be made available upon request.

     Each International Underwriter further represents that it has not offered
or sold, and agrees not to offer or sell, directly or indirectly, in Japan or to
or for the account of any resident thereof, any of the Shares acquired in
connection with the 


                                      29
<PAGE>

distribution contemplated hereby, except for offers or sales
to Japanese International Underwriters or dealers and except pursuant to any
exemption from the registration requirements of the Securities and Exchange Law
of Japan.  Each International Underwriter further agrees to send to any dealer
who purchases from it any of the Shares a notice stating in substance that, by
purchasing such Shares, such dealer represents and agrees that it has not
offered or sold, and will not offer or sell, any of such Shares, directly or
indirectly, in Japan or to or for the account of any resident thereof except
pursuant to any exemption from the registration requirements of the Securities
and Exchange Law of Japan, and that such dealer will send to any other dealer to
whom it sells any of such Shares a notice containing substantially the same
statement as is contained in this sentence.

     Each International Underwriter further represents and agrees that (i) it
has not offered or sold and will not offer or sell any Shares to persons in the
United Kingdom except to persons whose ordinary activities involve them in
acquiring, holding, managing or disposing of investments (as principal or agent)
for the purposes of their businesses or otherwise in circumstances which have
not resulted and will not result in an offer to the public in the United Kingdom
within the meaning of the Public Offers of Securities Regulations 1995 (the
"Regulations"); (ii) it has complied and will comply with all applicable
provisions of the Financial Services Act 1986 and the Regulations with respect
to anything done by it in relation to the Shares in, from or otherwise involving
the United Kingdom; and (iii) it has only issued or passed on and will only
issue or pass on to any person in the United Kingdom any document received by it
in connection with the issue of the Shares, if that person is of a kind
described in Article 11(3) of the Financial Services Act 1986 (Investment
Advertisements) (Exemptions) Order 1995, or is a person to whom such document
may otherwise lawfully be issued or passed on.

     Each International Underwriter agrees to indemnify and hold harmless each
Underwriter and each person controlling any Underwriter from and against any and
all losses, claims, damages and liabilities (including fees and disbursements of
counsel) arising from any breach by it of any of the provisions of paragraphs
seven, eight and nine of this Article III.

                                      30







<PAGE>
                                                                     EXHIBIT 5.1
 
                                  [LETTERHEAD]
 
                                October 30, 1996
 
Netscape Communications Corporation
501 East Middlefield Road
Mountain View, California 94043
 
    RE:  REGISTRATION STATEMENT ON FORM S-3
 
Ladies and Gentlemen:
 
    We  have examined the Registration Statement on  Form S-3 to be filed by you
with the Securities and Exchange Commission on October 30, 1996 (as such may  be
further  amended or  supplemented, the "Registration  Statement"), in connection
with the registration under  the Securities Act  of 1933, as  amended, of up  to
5,750,000 shares (including an over-allotment option granted to the Underwriters
to  purchase 750,000 shares)  of your Common  Stock, par value  $.0001 per share
(the "Shares"). Of the Shares, 2,000,000 shares (including all shares subject to
the  above-referenced  over-allotment  option)  are  authorized  but  heretofore
unissued,  and  3,000,000 shares  are  issued and  outstanding  and held  by the
Selling Stockholders referred  to in the  Registration Statement. We  understand
that  the Shares are to be sold to  the Underwriters for resale to the public as
described in the Registration Statement. As your legal counsel, we have examined
the proceedings taken,  and are  familiar with  the proceedings  proposed to  be
taken, by you in connection with the issuance and sale of the Shares.
 
    Based  on the  foregoing, it  is our  opinion that,  upon completion  of the
proceedings being taken  or contemplated  by us, as  your counsel,  to be  taken
prior  to the issuance of  the Shares, including the  proceedings being taken in
order to permit such transaction to be carried out in accordance with applicable
state securities laws, the Shares, when issued and sold in the manner  described
in  the Registration Statement and in accordance with the resolutions adopted by
the Board of Directors of the Company, will be legally and validly issued, fully
paid and nonassessable.
 
    We consent to  the use of  this opinion  as an exhibit  to the  Registration
Statement  and further consent to the use  of our name wherever appearing in the
Registration Statement, including  the prospectus constituting  a part  thereof,
and any amendments thereto.
 
                                          Very truly yours,
 
                                          WILSON SONSINI GOODRICH & ROSATI
                                          Professional Corporation
 
                                          /s/ WILSON SONSINI GOODRICH & ROSATI

<PAGE>
                                                                    EXHIBIT 23.2
 
               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
    We  consent to the reference to our  firm under the caption "Experts" in the
Registration  Statement   (Form  S-3)   and  related   Prospectus  of   Netscape
Communications  Corporation  for the  registration  of 5,750,000  shares  of its
common stock and to  the incorporation by reference  therein of our reports  (a)
dated  January 26, 1996  except for Note  12, as to  which the date  is March 4,
1996,  with  respect  to  the  consolidated  financial  statements  of  Netscape
Communications  Corporation incorporated by reference in its Annual Report (Form
10-K) for the year ended December  31, 1995 and the related financial  statement
schedule included therein, and (b) dated January 26, 1996, except for Note 2, as
to which the date is May 28, 1996, with respect to the supplemental consolidated
financial  statements and  related supplemental financial  statement schedule of
Netscape Communications Corporation included in  its Annual Report (Form  10-K/A
Amendment  No. 2)  for the  year ended  December 31,  1995, both  filed with the
Securities and Exchange Commission.
 
                                          /s/  ERNST & YOUNG LLP
 
Palo Alto, California
October 30, 1996

<PAGE>
                                                                    EXHIBIT 23.3
 
               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
    We  consent to the reference to our  firm under the caption "Experts" in the
Registration  Statement   (Form  S-3)   and  related   Prospectus  of   Netscape
Communications  Corporation  for the  registration  of 5,750,000  shares  of its
common stock and to the incorporation  by reference therein of our report  dated
February  16, 1996 with respect to the  financial statements of InSoft, Inc. for
the year ended December 31, 1995, included in the Current Report (Form 8-K/A) of
Netscape Communications  Corporation  filed  with the  Securities  and  Exchange
Commission on July 8, 1996.
 
                                          /s/  ERNST & YOUNG LLP
 
Harrisburg, Pennsylvania
October 30, 1996


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