<http://browser.netscape.com/ns8/>
The biggest hecs:
Two totally separate, including scripting, parsing engines:
Mozilla/Firefox (called "Netscape") and Internet Explorer. User can
choose any of them for permanent use, but by default IE is chosen.
Unless some engine is chosen for permanent use by user, the browser
will switch the engines from site to site based on the predefined list
of "trusted sites".
<quot>
If a site is considered trustworthy, Netscape automatically renders it
using the Internet Explorer method, for maximum compatibility.
If Netscape isn't sure about the trustworthiness of a site, it uses the
Firefox method for rendering the pages, which is safer but might have
compatibility issues.
</quot>
So if your site is not in the current Netscape list, NN will put
Mozilla on you.
The list of "trusted sites" (better say: "IE lovers club") is pretty
big, interesting to read and (what a surprise!) contains microsoft.com
in it.