Mozilla Browser Archive
Looking for an old version of Mozilla? evolt.org's Browser Archive has an archive of Mozilla releases dating back to m4, as well as mirrors for just about every other web browser ever released by any company
Looks to me like they go back to M4...
oops, corrected. thanks!
you can also retrive the old Mozilla releases back to M3 from the Mozilla Web site @ http://archive.mozilla.org/pub/mozilla/releases/
Here's Netscape as far back as 2.0:
. . . and here's all Netscape release from s far back as
Mosaic NetScape 0.9b . . . http://sillydog.org/narchive/