Facebook videos choppy/skippy in Firefox

[eagors93]

I have a problem with videos being shaky/torn (as if frames overlap for split seconds) from time to time on Facebook when using Firefox.

I had the problem on YouTube also, but I solved it by editing about:config and setting:
media.mediasource.webm.enabled;true

Now YouTube videos seem to work smooth, however Facebook still don't. Chrome, for example, seems to play both good.

Here's what I tried so far:
Disabling hardware accelaration
Reseting Firefox by uninstalling and deleting user profile
Uninstalling antivirus
Turning off nVidia drivers
Changing about:config settings to:

• 
  browser.sessionstore.interval;150000
  media.fragmented-mp4.enabled;true
  media.fragmented-mp4.exposed;true
  media.fragmented-mp4.use-blank-decoder;true
  media.mediasource.youtubeonly;false
  media.mediasource.ignore_codecs;true
  

None fix this issue.

Can someone help? It seems that once I got MSE & WebM VP9 enabled in YouTube, it started working well. Is there an option to enable it for Facebook maybe?

 

[basroil]

Reinstall your drivers

 

[eagors93]

Didn't help. This issue is actually very sporadic, some people may barely notice. But I do and it pisses me off sometimes. It's really hard to explain, I guess you could say I get some split second flickers. Any other tips?