I'm using Firefox 3 as well but I have no problems with GB. I'm forced to use IE 6 at work and I basically can't do a damn thing on GB with it. I can read things but I can't comment or post and I can't even try to look up a game or do edits. It really sucks since the majority of my internet time is spent while I'm at work because when I'm at home I'd rather be playing games or watching movies.
Viking: Battle for Asgard on 360. Most of the reviews have been pretty negative but I enjoyed the game quite a bit. I tend to agree with Jeff's review here on GB but even then I didn't find it as repetitive as he did.