Can't enable hardware acceleration in firefox no matter what

I followed all the steps written out in the archwiki, including modifying my .xprofile, but after executing MOZ_LOG="PlatformDecoderModule:5" firefox I’m still getting [Child 4128: Main Thread]: D/PlatformDecoderModule VA-API FFmpeg is disabled by platform. How do I properly enable hardware acceleration?

The closest thing i found is this, but you probably already tried it.

I just managed to fix this… in .xprofile I’m supposed to write export MOZ_DISABLE_RDD_SANDBOX=1 export MOZ_X11_EGL=1 ,
basic syntax error :man_facepalming:

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