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!

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

Learn More

Firefox massive frame drops when playing Youtube 8k video

  • 7 回覆
  • 1 有這個問題
  • 1 次檢視
  • 最近回覆由 V4kodin

more options

Firefox use 100% of my cpu and drops frames when playing 8k video (gpu acceleration setting is turned on). Chrome instead have no frame drops and does not use 100% of the cpu.

I tried to google it and use some solution, but no effect in my case.

hardware: cpu: ryzen 5600x gpu: rtx 4070 ram: 32 gb monitor: LC27 JG50QQIXCI (qhd 16:9 144hz)


PS: 1st picture firefox, 2nd chrome.

Firefox use 100% of my cpu and drops frames when playing 8k video (gpu acceleration setting is turned on). Chrome instead have no frame drops and does not use 100% of the cpu. I tried to google it and use some solution, but no effect in my case. hardware: cpu: ryzen 5600x gpu: rtx 4070 ram: 32 gb monitor: LC27 JG50QQIXCI (qhd 16:9 144hz) PS: 1st picture firefox, 2nd chrome.
附加的畫面擷圖

被選擇的解決方法

zeroknight said

Visit about:support in the address bar and check the status of the AV1 codec in the "Codec Support Information" section.

Thank you for leading me to the answer. I just need to install av1 codec support from ms store.

從原來的回覆中察看解決方案 👍 2

所有回覆 (7)

more options
more options

Also, I'm using latest 121.0 64 bit Firefox version

由 V4kodin 於 修改

more options

V4kodin said

PS: 1st picture firefox, 2nd chrome.

PS: 2nd picture firefox, 1st chrome.*

more options

Visit about:support in the address bar and check the status of the AV1 codec in the "Codec Support Information" section.

more options

zeroknight said

Visit about:support in the address bar and check the status of the AV1 codec in the "Codec Support Information" section.

I think this value is not set

more options

media.wmf.av1.enabled is set to true

more options

選擇的解決方法

zeroknight said

Visit about:support in the address bar and check the status of the AV1 codec in the "Codec Support Information" section.

Thank you for leading me to the answer. I just need to install av1 codec support from ms store.