In the past, I could enable YouTube acceleration on Linux FireFox (intel_gpu_top shows video percentage higher than 0), but in a new installation of Manjaro Gnome, even though I followed the Arch FireFox video acceleration guide, I could not make it work. YouTube vp9 video is playing fine, but on CPU (intel_gpu_top video = 0). Did I do something wrong, or is this a bug of FireFox 98?
Video acceleration works on mpv (for mp4, because I don’t have a local vp9 video).
Note: As of Firefox 98, VA-API is blocked by RDD sandbox, but can be used by setting the environment variable MOZ_DISABLE_RDD_SANDBOX=1 , although this is less secure. [11]
I personally don’t suggest to disable sandbox as this is a very serious security risk and even more so if you are using a “web browser”. From Firefox - ArchWiki
As a last resort, the content process sandbox can be disabled. However, this is a serious security risk and disables protection against attackers. It is recommended to leave the sandbox settings as default [18].
Here’s what you can do for now:
Disable HW on firefox tiil the issue is fixed (Don’t downgrade firefox!)
No, the thing is that I have tried those dangerous disabling RDD or something, and I still could not get the intel_gpu_top show bigger than 0% for video. So, my question is if anyone, who is using FF98 and Intel HD GPU, has successfully enabled YouTube video acceleration.
If you are okay with disabling sandbox then try launching firefox with this command. This should be enough to enable HW on FF98 given that it was working normally in previous versions.
However, you also have to use the intel-media-driver instead of the modesetting xf86-intel one. The latter one is too old and unsupported.
In about:support you should see somewhere something about FEATURE_FAILURE_DDX.
On Windows, I have seen “New updates” nagging pop-up for days, and that was all the change? Damn, this is stupid. Yeah, war is a bad thing, but are we going to do this from now on? Whenever a war happens, we are going to remove everything from the country from the society and the Internet? I will see if we will do the same thing to Chinese things when China invades Taiwan.