Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

FF56. Youtube at 60fps drops the majority of the frames.

  • 1 reply
  • 1 has this problem
  • 3 views
  • Last reply by firelogic

firelogic
firelogic
more options

After updating to FF56, youtube videos playing at 60fps no longer works properly. It drops most of the frames and the video is very jittery. It was not a problem prior to this update. I tested by starting FF in Safe Mode and the problem went away. I have 2 extensions, Greasemonkey and Ublock Origin. I restarted FF normally and disabled Greasemonkey and the problem happened again. I disabled Ublock and the problem continued.

What else is disabled in Safe Mode that could be causing this issue to occur? I have 3 plugins and they were all enabled even in Safe Mode. I tried enabling/disabling "use recommended performance settings" and nothing changed.

After updating to FF56, youtube videos playing at 60fps no longer works properly. It drops most of the frames and the video is very jittery. It was not a problem prior to this update. I tested by starting FF in Safe Mode and the problem went away. I have 2 extensions, Greasemonkey and Ublock Origin. I restarted FF normally and disabled Greasemonkey and the problem happened again. I disabled Ublock and the problem continued. What else is disabled in Safe Mode that could be causing this issue to occur? I have 3 plugins and they were all enabled even in Safe Mode. I tried enabling/disabling "use recommended performance settings" and nothing changed.

All Replies (1)

firelogic
firelogic Question owner
more options

SOLVED: It was hardware acceleration. I disabled it and it fixed the problem. Previously I only unchecked use recommended performance settings.