quality of 1080p hd in browser firefox via os linux mint 32

[ramia]

i did it

I wrote in address line of web browser of firefox the "about:config" in Firefox & i make sure that both media.mediasource.mp4.enabled and media.mediasource.webm.enabled are set to true."

but i can't to get quality of 1080p hd, only until 720p, in browser googel chrome, i get 1080P,

how to fix it in firefox?

thanks.

[gvp3]

set to true:
media.fragmented-mp4.enabled
media.fragmented-mp4.exposed
media.fragmented-mp4.ffmpeg.enabled

[ramia]

where to set this?
thanks

[gvp3]

where to set this?
thanks

"Go to about:config in Firefox ...."

[ramia]

thanks.
this sloved this problem.