It's a known issue https://bugzilla.mozilla.org/show_bug.cgi?id=1658392
I have a laptop with Intel HD graphics and Firefox can't play fullhd video on x2 speed. It freezes every second. Chrome on the same machine plays the same video flawlessly.
Re:Reasons to ditch Chrome and use Firefox
by wildrhythms on Saturday May 28, 2022 @08:23AM
(#31539769)
How does one 'set up' video acceleration and codecs?
Hmmm... I've never had this problem and I use YouTube heavily. You sure your video acceleration and codecs and all that are set up right?