AOL, owner of Netscape since 1999, has announced that it will “continue to release security patches for the current version of the browser, Netscape Navigator until February 1, 2008.”
Troubles for Netscape began in 2000, when under market pressure, it released version 6.0 before it was properly debugged.
For more details about this announcement visit the Netscape Blog
http://blog.netscape.com/2007/12/28/end-of-support-for-netscape-web-browsers/
For a history of Netscape follow this link on wikipedia: http://en.wikipedia.org/wiki/Netscape
Have a great day!