Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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
Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.
In die argief

Disabling GPU makes FF faster (on my machine)

zeroknight replied
romarin12

Hello there,

It's more an observation than a question.

FF was slow when several pages with video feeds were opened. Looking at the about:processes, I saw that the GPU usage was high. Disabling hardware acceleration solved this problem.

This occurred on a Dell XPS-15-9520, Win11, i5-12500H, 64GB RAM, Iris Xe. I don't have this problem on Linux machines.

May I suggest to benchmark and monitor hardware acceleration so that both CPU and GPU are used in case of heavy workload?

Many thanks,

Olivier. (very long time, happy, FF user ... )

Hello there, It's more an observation than a question. FF was slow when several pages with video feeds were opened. Looking at the about:processes, I saw that the GPU usage was high. Disabling hardware acceleration solved this problem. This occurred on a Dell XPS-15-9520, Win11, i5-12500H, 64GB RAM, Iris Xe. I don't have this problem on Linux machines. May I suggest to benchmark and monitor hardware acceleration so that both CPU and GPU are used in case of heavy workload? Many thanks, Olivier. (very long time, happy, FF user ... )

All Replies (1)

If your integrated Intel GPU is too slow, try switching to your discrete Nvidia GPU.

Windows Settings > System > Display > Graphics > Add firefox.exe > Options > High performance GPU