Netscape Navigator is a web browser spawned from the Mosaic platform and slightly resembles Firefox in its functionality and features. There is tabbed browsing, bookmark organizing, RSS feeds, search engine management and possibility to add Mozilla extensions.

Netscape Navigator was originally based on the Mosaic web browser which was created at the University of Illinois and it is from Mosaic, that IE, Firefox and Chrome inherited most of their characteristics. Developed by Netscape Communications Corporation, Netscape Navigator was coded by many of the original Mosaic authors and the first version was released in October of 1994. V1.x included a really simple UI with an address bar (named