I have the same problem but with Mac OS X 10.8.4. I downloaded the Beta 24.0 but still doesn't work. The videos will play - sort of! All I get is the top left-hand quarter of the videos. These play just fine in Safari but this problem has just started occurring since I installed 23.0.1. I would hate to have to go back to using Safari but if this isn't resolved soon, I will have to.
... View more