Netscape Communicator 4.0

1997 June 11th

At the time of the culmination of the first browser war, Netscape released Netscape Communicator 4.0, a web application suite. It included, for example, Netscape Navigator 4.0 web browser with CSS1 support, Netscape Messenger email client, Netscape Composer HTML editor and Netscape Calendar. In January 1998, Netscape announced that the subsequent versions of the software will be developed as open source projects under Mozilla and will be available to users free of charge.

Netscape Navigator 4.0

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