The new AB just does not work properly in Firefox. I raised a question yesterday, but now can't find it, because I can't see any pages beyond page 2 in some cases. page 1 in others. Somebody suggested changing the URL by adding "-2" which works, but that is not a viable long term fix. (I'm using version 3.5.2 and have no intention of installing IE8)
The text on mine is all over the place and not in the text box and the bars, such as the answer bar (e.g.Answers 21 to 25 of25) or at the bottome showing the next pages do not occupy the width of the new answer, and lose text off the end.
All in all, it is bordering on unusable!