Beta 5 came out a few days ago and Lifehacker says it's pretty much stable enough to run full time, so I've reinstalled it (tried betas 2 and 4 and quickly uninstalled) with an extension to force old extensions to work. It's not perfect, in fact, far from, but FF2 keeps hanging when loading certain webpages which was just so annoying so I gave in.
Sigh. Uninstalled it. It kept crashing (at least 4 times in 6 hours), the incompatibility made it look ugly, not much worked like it should, pages loaded much slower and it was just a huge hassle overall. Now FF2's menus won't display because of something I did in FF3, but I have no idea what. Screw FF3. D:
Yeah, I'll leave it a few weeks/months after the release date to wait for addons to catch up. Release date in June? Mozilla said that this Beta was pretty much the finished product (which is scary, considering it crashed 4 times in like 6 hours, whereas FF2 has crashed on me about 4 times in the whole time I've had it - since it came out)
Not sure, I assume some of the crashes were partly caused by the forced extensions, but I don't think any of the things I was doing actually involved any of those extensions.
I tried it to see if a website i'm working on was working fine in it (it did) and it ran fully stable for me, it's a good piece of software, but yes the missing add-ons are a problem, allthough that occured too when Firefox 2 first came out.