I'm loving Firefox 2 here. The built in spell checker rocks. The session restore is awesome. Tabs are improved. Just a nice upgrade all the way around. But Firefox 3 is going to be the big update. Can't wait for that to happen next year.
With me it is other way around...Can't keep IE 7.0 up and FF 2.0 works like a dream. I don't plan on going back to IE.
I don't know what the deal is... I had this same prob when I first started with it but after about a week it stopped happening.. magic.
Having similar probs with 2.0. Just upgraded from the last beta which was very stable. Gone back to 1.5 for now...
Are you using Google's toolbar with it? If so, uninstall it and use http://www.quirk.biz/searchstatus/ instead for you PR addiction. I was having the same problems with FF 2.0 - I removed G's toolbar and all was well.
I think this is accurate in that I seem to remember someone else on DP having the crashing problem and it was linked back to the GT
Their first maintenance release should be out soon. It has a ton of bug fixes already and I am sure more will be added before it is released.