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YouTube 4K video playback performance issue on Windows 11

  • 7 replies
  • 1 has this problem
  • 51 views
  • Last reply by mingsun123

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I had been using Firefox browser for awhile, but because of playback performance issue, I have to using another browser just for video playing, especially for 4K video.

Compared to Edge, Firefox seems taking more resources to playback the YouTube video and more heat. When look at the Task Manager, the Video Processing is 0%, and GPU is running significantly more resources on '3D'.

I had been using Firefox browser for awhile, but because of playback performance issue, I have to using another browser just for video playing, especially for 4K video. Compared to Edge, Firefox seems taking more resources to playback the YouTube video and more heat. When look at the Task Manager, the Video Processing is 0%, and GPU is running significantly more resources on '3D'.

Chosen solution

The issue has been resolved after updated to Firefox 100.

Thanks.

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All Replies (7)

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We need links to the problem video for others to try at 4k setting to see what happens. And a screenshot of the resource task manager to see what other process is causing this.

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This is the screenshots I got, the image from the left is from Firefox & next is from Edge. The YouTube Links: here

Modified by mingsun123

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You said Windows 11 but your screenshot is showing Mac?

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mingsun123 said

Hello! Does it still happen in Troubleshoot Mode?: Diagnose Firefox issues using Troubleshoot Mode

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-elison- said

mingsun123 said

Hello! Does it still happen in Troubleshoot Mode?: Diagnose Firefox issues using Troubleshoot Mode

It even worst, and video playback was lagging.

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donthavecow said

You said Windows 11 but your screenshot is showing Mac?

That is the video....

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Chosen Solution

The issue has been resolved after updated to Firefox 100.

Thanks.