Netscape 4.0x

Netscape Navigator/Communicator was the first commercial web browser, displacing the free NCSA Mosaic. 1.0 was first released in December 1994, and initially offered advanced features such as progressively rendering pages as they loaded. It quickly gained many other features and capabilities and became the most popular web browser in the mid 1990s. One reason for its popularity, it was licensed freely for personal and non-profit use, although companies were expected to pay for a license. It later competed with Microsoft Internet Explorer, Opera, and Safari, and eventually was open sourced in to the Mozilla browser.

Many other versions of Netscape can be found on the Sillydog Archive and the Netscape FTP.

Release notes

Netscape 4 added many features over previous versions, and represented a major change. However, 4.0x was much more resource intensive, and early 4.0x releases were very buggy.

Officially it required a minimum of 8MB of ram, however 16MB or more is advised.

Product type
Application Web Browser
Release date
Minimum CPU
Minimum RAM
Minimum free disk space
User interface
Windows OS2 Unix Linux MacOS Other
Download count
18 (0 for release)


Download name Version Language Architecture File size Downloads
Netscape Composer 4.09SE.exe Composer 4.09SE English 17.76MB 0


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