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Playing video on youtube use a lot of CPU

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  • Last reply by cor-el

midipidemy
midipidemy
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Firefox use a lot of CPU time ( it reaches 100% ) while watching youtube videos in 720p on Windows 10, and videos lags and stutters too much. Not using any ad blockers, non of plug-ins are on. It does work just fine on Ubuntu on the same machine Vids also were working fine on previous popular web browser known for its spyware

Using hardware acceleration is on in browser settings. Specs are: CPU: Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz 4,00 GB x64 Windows 10 Home edition 22H2 GPU: NVIDIA GeForce GT 635M

Firefox version 120.0.1 (64-bit), up-to-date

Firefox use a lot of CPU time ( it reaches 100% ) while watching youtube videos in 720p on Windows 10, and videos lags and stutters too much. Not using any ad blockers, non of plug-ins are on. It does work just fine on Ubuntu on the same machine Vids also were working fine on previous popular web browser known for its spyware Using hardware acceleration is on in browser settings. Specs are: CPU: Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz 4,00 GB x64 Windows 10 Home edition 22H2 GPU: NVIDIA GeForce GT 635M Firefox version 120.0.1 (64-bit), up-to-date

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midipidemy
midipidemy Question owner
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Forgot to say, hardware acceleration is on, yet GPU is unused. GPU drivers is up-to-date. I haven't checked if GPU is used by Firefox on Ubuntu yet.

cor-el
cor-el
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Did you check the Graphics section on the "Help -> More Troubleshooting Information" (about:support) page?

midipidemy
midipidemy Question owner
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Hey, thank you for the answer. I checked it, Nvidia Card is active. Seems like some settings in Windows itself were switched off. Ok, now I managed to at least give some tasks on GPU, reducing a few stutters, yet browser is still eating like 50% of CPU time. I guess it's due to to my GPU inability to decode all of the video, I don't know. Anyway, the problem was not on Firefox side.

cor-el
cor-el
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