I have recently been having problems with distorted online video on Facebook and YouTube etc. This problem is only present in Firefox beta and Firefox developer desktop browsers but not in the normal version. Disabling hardware acceleration fixes the problem. Are there any differences between Firefox beta and normal Firefox in terms of hardware acceleration? I am trying to find the root cause to this problem. (I have tried different graphics driver versions with the same result), I am trying to figure out if this is a hardware or software problem.

Thanks