Created attachment 8491061 [details] bad video display 1.jpg Many videos fail to play in Firefox (they play with artifacts — so badly distorted, that nothing useful can be seen; audio is present, though). I've tested this in Safe Mode too. Example of problematic video: http://odnoklassniki.ru/video/17167944401 Using Flash player 15,0,0,152. Same problem in IE, but plays well in Chrome. See screenshots.
¡Hola Roman! Please try the steps detailed at https://support.mozilla.org/en-US/kb/keep-flash-up-to-date-and-troubleshoot-problems and let us know if that improves things.
Works fine on my side. Be sure your GPU drivers are up-to-date.
Thanks, Alex. Disabling hardware acceleration has fixed the problem. It's strange, though, as the problem has started recently, and the drivers haven't changed in a long while.
(In reply to Roman R. from comment #5) > Thanks, Alex. Disabling hardware acceleration has fixed the problem. It's > strange, though, as the problem has started recently, and the drivers > haven't changed in a long while. Can you post the contents of about:support ?
Alex, when I was following your advice, I ended up on Adobe's site, which pointed me to where I could download a newer GPU driver. After I updated the driver, I was able to turn the hardware acceleration flag back on, and the problem with video playback hasn't returned. I've filed a bug report with Adobe too, per their suggestion. The culprit appears to be that particular version of Flash player. Alex, do you still want to see the contents of about:support?
As the bug has been fixed by updating the GPU drivers, I close it.
Moving from Core::Untriaged to Core::General https://bugzilla.mozilla.org/show_bug.cgi?id=1407598