Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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.

Firefox takes 98% of my processor capacities

  • 3 replies
  • 2 have this problem
  • 1 view
  • Last reply by TXGuy

AnonymousUser
AnonymousUser
more options

firefox 3.6.3, but same thing with previous version, on XP. Suddenly the computer slows down to idle. Closing Firefox does not help. The only way out is to kill the process via the task manager. I use a modem, impossible for me to have broad band: I have to start uploading gmail again and it takes me each time about 10m! Hibernating is the solution, but killing the process means upload all again.

This happened

A few times a week

just like that, one day!

User Agent

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727)

firefox 3.6.3, but same thing with previous version, on XP. Suddenly the computer slows down to idle. Closing Firefox does not help. The only way out is to kill the process via the task manager. I use a modem, impossible for me to have broad band: I have to start uploading gmail again and it takes me each time about 10m! Hibernating is the solution, but killing the process means upload all again. == This happened == A few times a week == just like that, one day! == == User Agent == Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727)

All Replies (3)

TXGuy
TXGuy
more options

Extension: Tools > Options > Add-ons > Extensions Plugins: Tools > Options > Add-ons > Plugins

Safe Mode You may need to use Use Troubleshoot Mode in Firefox (click on "Safe Mode" and read) to localize the problem. Firefox Safe Mode is a diagnostic mode that disables Extensions and some other features of Firefox. If you are using a theme, switch to the DEFAULT theme: Tools > Add-ons > Themes before starting Safe Mode. When entering Safe Mode, do not check any items on the entry window, just click "Continue in Safe Mode". Test to see if the problem you are experiencing is corrected.

See: Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems Troubleshoot and diagnose Firefox problems

If the problem does not occur in Safe-mode then disable all of your Extensions and Plug-ins and then try to find which is causing it by enabling one at a time until the problem reappears. You MUST close and restart Firefox after EACH change via File > Restart Firefox (on Mac: Firefox > Quit). You can use "Disable all add-ons" on the Safe mode start window.

AnonymousUser
AnonymousUser Question owner
more options

I'm now running firefox in safe mode, but the problem occured again twice in two days: what should I try now?

AnonymousUser
AnonymousUser Question owner
more options

I forgot: in the task manager, the numbers in the memory and the page errors columns rise constently, while the processor column is between 97 and 99%