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Related, Firefox 80 landed the VA-API Changes for Linux [1]

It has drastically improved viewing 4k Videos on Linux for me where before the video would use up 100% of my integrated GPU, and now its down to 0%

AFAIK Chrome isn't using this as seen from intel_gpu_top so this was a major improvement for me.

[1] https://www.phoronix.com/scan.php?page=news_item&px=Firefox-...

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Firefox on wayland has been a joy to use recently (webrenderer, dmabuf, webgl, vaapi). Everything including video and scrolling is butter smooth and doesn't clog the cpu, even with 200-300+ tabs (i know...) over several windows. Much better than Chrome (on Linux at least). Interestingly, RAM usage also seems to be better in ff (both with plugins), but that might be anecdotal.

Do we still need moz_enable_wayland env variable or is this the default now?

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