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

Why is Firefox using too much ram and how to fix it?

  • 1 reply
  • 1 has this problem
  • 7 views
  • Last reply by FredMcD

more options

Firefox according to task manager is using around 3gig of ram. I'm having trouble clicking on anything because there is a delay. I've uninstalled what few add-ons i had and no improvement. My pc is Intel I59400f running windows 10 with 8 gig ram plus gtx1660 super with 6gb ram too

Firefox according to task manager is using around 3gig of ram. I'm having trouble clicking on anything because there is a delay. I've uninstalled what few add-ons i had and no improvement. My pc is Intel I59400f running windows 10 with 8 gig ram plus gtx1660 super with 6gb ram too

All Replies (1)

more options

Start Firefox in Safe Mode {web link}

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?


https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster

https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

https://support.mozilla.org/en-US/kb/firefox-takes-long-time-start-up

https://support.mozilla.org/en-US/kb/quick-fixes-if-your-firefox-slows-down


MemTest LAST UPDATED : 12/04/2020 Could you please run a tool from http://memtest.org/ in order to check the integrity of your RAM?

You will need a thumb or disk drive to install it on.


Do you let Windows handle the page file or did you set a fixed size ? If you use a fixed size for the page file then try the former and let Windows handle the page file.