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

Firefox is using over 10GB of RAM and over 80% of CPU utilization. Why?

  • 1 reply
  • 2 have this problem
  • 4 views
  • Last reply by Shadow110

more options

I noticed Firefox began running extremely slow, and when I opened both Intel XTU and Task Manager, both showed Firefox was using over 10GB of RAM and 80% CPU Utilization. What would cause this?

I noticed Firefox began running extremely slow, and when I opened both Intel XTU and Task Manager, both showed Firefox was using over 10GB of RAM and 80% CPU Utilization. What would cause this?

All Replies (1)

more options

Please : go to the Firefox 3 Bar Menu --> Options --> Privacy & Security panel and under Permissions check (put a tick in the box) the setting to Prevent Accessibility Services from accessing your browser.

Monitor in Task Manager. Should stay below 2 gigs. If excessive then do below and monitor and change if need to...Test and go up again , go back down, it will eventually get a zone you and it can live with.

Go to the 3 Bar Menu then Options --> General --> Performance and untick everything. change the recommended size lower then see how it runs. Note: 1 = No Multiprocessor = slow again. Try 2 Restart Firefox after making these changes please.

Note : Hardware Acceleration is for Video Card, Monitor to see if remain off or to turn back on.

Please let us know if this solved your issue or if need further assistance.