firefox has huge memory problems, I like Chrome but it has some annoying bugs:
1) when you submit in some text boxes, it will truncate/word wrap the submitted text so it displays all wrong. Forums seem fine but the frontpage does it grrrr
2) Webstart, etc. don't work and it lacks some basic plugins (ie. adblock)
3) It crashes, despite its claims.
So i'm juggling chrome and firefox.