Suddenly FF is not showing youtube correctly. The CSS formatting is gone. I downloaded chrome to see if that one has the same issue, but no... there it works perfectly. All other websites (like LL, Vimeo) works perfectly. It is just Youtube. Anyone any idea what is goin on here? Ive been at it for several hours, starting without addons, clearing cache cookies et cetera,... but nothing seems to help. P.S. I just noticed that youtube embedded video's in other websites (like cnn.com) are missing the format aswell. You can still play the video but the buttons are huge and you have to scroll to press them. So there the formatting is gone too. In Chrome this is normal there as well.