I can't believe how they've screwed up this thing. First of all, the "organize bookmarks" section, which used to be very well designed, is now unusable. Secondly, for StumbleUpon addicts like myself, apparently Firefox things giving a page a thumbs up or down means you want to add it to your bookmarks. Third, maybe it's just me, but it seems to be slower than a glacier compared to the prior version. Is it just me, or is it time to give up on this once great browser?