Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

CPU jumps to 50% when exiting Firefox, then stays there. Why?

  • 2 replies
  • 6 have this problem
  • 12 views
  • Last reply by hysan

hysan
hysan
more options

I am using WinXP and Firefox 26.0. 4GB RAM

From looking at Windows Task Manager I came to realise that Firefox continues to run after Exit. It NEVER closes, and continues to use 50% of CPU. Needed to use End Process.

Then, watching Windows Task Manager some more I discovered that the process was NOT using that CPU while running. Only after Exit did the CPU usage suddenly jump to 50%, and stay there. Only End Process closes Firefox.exe.

Any help or advice appreciated.

I am using WinXP and Firefox 26.0. 4GB RAM From looking at Windows Task Manager I came to realise that Firefox continues to run after Exit. It NEVER closes, and continues to use 50% of CPU. Needed to use End Process. Then, watching Windows Task Manager some more I discovered that the process was NOT using that CPU while running. Only after Exit did the CPU usage suddenly jump to 50%, and stay there. Only End Process closes Firefox.exe. Any help or advice appreciated.

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Use "Firefox > Exit" (Windows: Firefox/File > Exit; Mac: Firefox > Quit Firefox; Linux: Firefox/File > Quit) to close Firefox if you are currently doing that by clicking the close X on the Firefox title bar.

See:

hysan
hysan Question owner
more options

Thanks. But I was already using Exit (rather than clicking the close X), having already read that advice on earlier complaints about similar problems.

Any "next thing to try"?