Netscape Navigator was based on the Mosaic web browser, which was co-written by Marc Andreessen, a part-time employee of the National Center for Supercomputing Applications and a student at the University of Illinois. After Andreessen graduated in 1993, he moved to California and there met Jim Clark, the recently-departed founder of Silicon Graphics. Clark believed that the Mosaic browser had great commercial possibilities and provided the seed money. Soon Mosaic Communications Corporation was in business in Mountain View, California, with Andreessen as a vice-president. Since the University of Illinois was unhappy with the company's use of the Mosaic name, the company changed its name to Netscape Communications (thought up by sales representative Greg Sands) and named its flagship web browser Netscape Navigator.
Mosaic Netscape 0.9, a pre-1.0 version. Note the image of the Mozilla mascot, and the Mosaic logo in the top-right corner.
Netscape announced in its first press release (October 13, 1994) that it would make Navigator available without charge to all non-commercial users, and Beta versions of version 1.0 and 1.1 were indeed freely downloadable in November 1994 and March 1995, with the full version 1.0 available in December 1994. Netscape's initial corporate policy regarding Navigator is interesting, as it claimed that it would make Navigator freely available for non-commercial use in accordance with the notion that Internet software should be distributed for free.
However, within 2 months of that press release, Netscape apparently reversed its policy on who could freely obtain and use version 1.0 by only mentioning that educational and non-profit institutions could use version 1.0 at no charge.
The reversal was complete with the availability of version 1.1 beta on March 6, 1995, in which a press release states that the final 1.1 release would be available at no cost only for academic and non-profit organizational use. Gone was the notion expressed in the first press release that Navigator would be freely available in the spirit of Internet software.
The first few releases of the product were made available in "commercial" and "evaluation" versions; for example, version "1.0" and version "1.0N". The "N" evaluation versions were completely identical to the commercial versions; the letter was there to remind people to pay for the browser once they felt they had tried it long enough and were satisfied with it. This distinction was formally dropped within a year of the initial release, and the full version of the browser continued to be made available for free online, with boxed versions available on floppy disks (and later CDs) in stores along with a period of phone support. Email support was initially free, and remained so for a year or two until the volume of support requests grew too high.
During development, the Netscape browser was known by the code name Mozilla
, which became the name of a Godzilla-like cartoon dragon mascot used prominently on the company's web site. The Mozilla name was also used as the User-Agent in HTTP requests by the browser. Other web browsers claimed to be compatible with Netscape's extensions to HTML, and therefore used the same name in their User-Agent identifiers so that web servers would send them the same pages as were sent to Netscape browsers. Mozilla is now a generic name for matters related to the open source successor to Netscape Communicator.