Using the fix stated by ghomem
media.fragmented-mp4.gmp.enabled = true
solved the issue with Facebook.
However this opened another problem, now instagram vides doesnt work. Reverting it back to
media.fragmented-mp4.gmp.enabled = false
And instagram videos works again.
Using the fix stated by ghomem
media.fragmente d-mp4.gmp. enabled = true
solved the issue with Facebook.
However this opened another problem, now instagram vides doesnt work. Reverting it back to
media.fragmente d-mp4.gmp. enabled = false
And instagram videos works again.