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Youtube laggy, slow to start

  • 1 reply
  • 2 have this problem
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  • Last reply by TyDraniu

henryowinston
henryowinston
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FireFox works well for everything I need except for youtube. There is usually a 5-10 second delay before a video starts playing. And once it is playing the video will often stutter (audio stays fine). Overall the site just runs really slow. I've tried using a private window and the problem is present there without any of my extensions active. Also I've tested on Chrome and youtube runs much smoother in that browser. Please help?

FireFox works well for everything I need except for youtube. There is usually a 5-10 second delay before a video starts playing. And once it is playing the video will often stutter (audio stays fine). Overall the site just runs really slow. I've tried using a private window and the problem is present there without any of my extensions active. Also I've tested on Chrome and youtube runs much smoother in that browser. Please help?

All Replies (1)

TyDraniu
TyDraniu
  • Top 25 Contributor
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Hi, I can only think of Windows Defender bug that affected Firefox's performance. We're seeing a ~75% CPU usage reduction on YouTube with patched Defender when running Firefox.

Try to run a definition update of the Windows Defender.