The linux version of firefox still doesn't even have opengl compositing by default, so I wouldn't hold your breath for hardware decoding any time soon. There i

The linux version of firefox still doesn't even have opengl compositing by default, so I wouldn't hold your breath for hardware decoding any time soon. There is a bounty for the issue here: https://www.bountysource.com/issues/55506502-add-va-api-hardware-decoding-support-on-linux https://www.bountysource.com/issues/55506502-add-va-api-hard... It seems like the only hope we have for hardware decoding in a major browser on linux any time soon is if this chromium patch ever gets landed: https://chromium-review.googlesource.com/c/chromium/src/+/532294 https://chromium-review.googlesource.com/c/chromium/src/+/53... But they are taking their sweet, sweet time.