sorry about the typo in the name I didn't see that until after I posted

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the question title is resolved but the real problem of hardware acceleration being broken for my 7800 XT on Arch Linux is still the main problem here thanks for that tho

another thing I noticed is using the browser refresh feature will temp fix it but it the problem comes back its like browser performance degradation. Also refreshing Firefox is the nuclear option and I would prefer not to do that. IDK if I discovered a bug with RDNA 3 cards and hardware acceleration with VAAPI on Firefox but for the time being until I can get hardware acceleration working I've just turned it off its not ideal and I would like hardware acceleration to work but until this is fixed. I'll have to leave without hardware acceleration

Does this happen with any specific codec (right-click on the video and select "Stats for nerds")? Try changing media.av1.enabled to false in about:config.

Does it still happen with the flatpak package?

Try installing newer or older Mesa drivers.

Does this happen with any specific codec (right-click on the video and select "Stats for nerds")? Try changing media.av1.enabled to false in about:config. Does it still happen with the flatpak package? Try installing newer or older Mesa drivers.

it doesn't seem to be specific to any codecs from what I can tell and I am using the arch package not the flatpak for firefox developer edition

the problem seems to be mostly with YouTube and sometimes with Twitch Netflix works just fine so idk

since the problem seems to lay mostly with YouTube it might have to do with the codecs YouTube uses but its weird

YouTube was working fine til a recent update I would say maybe a couple of days to a week ago not really sure but I suspect there might have been a commit that made its way into Firefox developer edition that broke hardware decoding for the 7800 XT but I'm not 100% sure that is the problem I am considering downgrading Firefox to an older version to see if the problems go away to see if it was something introduced in a recent version of Firefox

I was running an older version of Firefox 125.0b9 and noticed this error during the problems with YouTube WARNING: Decoder=7ef967e18d00 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005): file /usr/src/debug/firefox-developer-edition/firefox-125.0/dom/media/MediaDecoderStateMachineBase.cpp:167

also the problem seems to be less serve on versions of Firefox before Firefox 126.0b1 tho they are still there YouTube just doesn't fully crash this time

ok so downgrading to Firefox 125.0b9 helped a lot instead of crashing it just struggles to handle HD playback so something was introduced in 126.0b1 that is causing issues for hardware decoding on AMD in my case the RX 7800 XT

nvm I was just getting lucky I am still having the problem on 125.0b9

downgrading doesn't seem to fix the problem I was mistaken

my guess is there is a problem with libva-vdpau-driver libva-mesa-driver and firefox there is probably an incompatibility I am going to try one last thing that being running firefox in xwayland

running firefox with MOZ_ENABLE_WAYLAND=1 helps but that tells me its not using wayland for rendering by default

it works for a bit but then goes back to crashing the youtube video player

the only thing that seems to be working to fix the issue is disabling hardware acceleration in Firefox all together which is something I really don't want to do