Hello forum,
i don't know if it helps you but i seemed to discover that Firefox finally properly supports GPU's
in the sense that you can make TRUE the " Vulkan" setting by going to the web address "about:config" and searching Vulkan.............
then also go into Firefox regular settings and PERFORMANCE section and click OFF the option
"use regular hardware settings"....
when i now run Firefox ver 152....... i see that all the "video work" has been offLoaded to my GPU at about 35 percent of work done by the GPU.....the cpu work drops down a lot to about 16 percent ( Intel Skylake dual core processor 2.2 ghz )
you can check that Firefox is using your GPU by going to the web address....."about:support" and scroll down to "graphics" section and see that the " web render compositor" setting is saying "Webrender".........this means your GPU is being used. If it does not say that, then it isn't.....
probably you all already know this stuff....
thanks
C