[gamache]

> At release Netscape Navigator 1.0 competed against NCSA Mosaic. Over Mosaic, Netscape offered the ability to see documents and images as they load, loading both images and text at the same time, support for JPEG graphics, document caching, a friendlier GUI with more configuration options, and hierarchical bookmarks.

This leaves out a huge differentiator -- Netscape supported background images. Every site looked blander in Mosaic (even if it were a lot easier to read). The other features TFA mentions are great but background images were the origin of "This site is best viewed using XXXX".