The browser introduced and improved a number of features and also added proprietary extensions to the HTML standard. Notably, Netscape 2 was the first browser to support JavaScript and animated GIFs, two technologies still predominant on the web today.
Features
The browser introduced many new or improved features:
Support for progressive JPEGs (previous versions supported only the baseline format)[1]
Support for GIF89a (previous versions supported only GIF87a)[1]
Support for client-side image maps (previous versions supported only server-side image maps)[2]
To promote Netscape Navigator, Netscape developed the "Netscape Now" program. The program promoted the display of the "Netscape Now! 2.0" web badge on websites with newly supported features, including frames, live objects, Java applets, and JavaScript.[7][8]
Popular plugins
The support for plugins led to the development of a number of popular plugins to extend Navigator's functionality.