Playing Videos in Webversin (Firefox) causing "Artifacts"

[CaptainCoward]

It's hard to reproduce and appears to be "random". In Groups where a lot of videos get posted and you switch through the videos and then watch one of the videos from time to time there might appear some kind of Flickering/Artifacting on the Whole screen (not just the Video). Only the Windows Taskbar wont flicker it seems. I just wanted to report that issue although it is very hard to reproduce and maybe only on AMD.