I found some stuff (a bit old) about FF3 and win98SE here:
https://bugzilla.mozilla.org/show_bug.cgi?id=331723More to the point, perhaps, here's some info I got today from the Firefox support group:
"The reason why Win98 isn't supported is because it would require a lot _a lot_ of work to add support for it, even for experienced Firefox & Windows developers.
"If you or your group are willing to do the work,
there is AFAIK no reason why it couldn't be supported, but I'm afraid you are already too late for Firefox 3 as they have already released beta.
You could get support for the next version, assuming you are able to write the patch fast enough."
You would probably get help from the developers also. But I seriously suggest that you first study how big task this is.
"If you wonder why Firefox 2 works, but Firefox 3 doesn't. The reason is within the changes to the core of the Firefox. Firefox 3 uses Cairo, which doesn't work in Win98, due to lack of API functions that are available on more modern operating systems."
So there's some positive stuff to follow-up on mixed in with the negative. I only wish I had the programming skills to do this...Could anyone elect to follow-up on it and keep us informed?