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Firefox stops working after period of time

  • 3 replies
  • 1 has this problem
  • 5 views
  • Last reply by FredMcD

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Hi Been happy user of Firefox Browser for a long time. Unfortunately I'm having an issue with it on Laptop.

I start Firefox and all is fine but after a while of opening new pages or browsing to other sites, Firefox just stops loading pages. The period of time is shorter the more active I am. I can't navigate back or forward, or refresh, or goto Home either. I close Firefox but the process remains open in task manager for a period of time. If I try to reopen firefox from desktop it wont start for a bit but after a period of time I'll get a msg saying firefox is still open and need to close to restart it. I then restart it and its fine, until the above problem reoccurs.

I've tried the following to fix it with no success:

- disabled hardware accel - removed all addons - refreshed firefox - uninstalled Firefox (and deleted anything I could find related to FF like registry entries and profile folders) and reinstalled

Nothing worked.

My desktop PC is pretty much identical to laptop...same addons, same programs, but have not had the same issue. The only real diff is I've upgraded the laptop to Windows 11 (desktop still Win 10) but the issue did not occur immediately after, probably a week later.

Any thoughts?

Hi Been happy user of Firefox Browser for a long time. Unfortunately I'm having an issue with it on Laptop. I start Firefox and all is fine but after a while of opening new pages or browsing to other sites, Firefox just stops loading pages. The period of time is shorter the more active I am. I can't navigate back or forward, or refresh, or goto Home either. I close Firefox but the process remains open in task manager for a period of time. If I try to reopen firefox from desktop it wont start for a bit but after a period of time I'll get a msg saying firefox is still open and need to close to restart it. I then restart it and its fine, until the above problem reoccurs. I've tried the following to fix it with no success: - disabled hardware accel - removed all addons - refreshed firefox - uninstalled Firefox (and deleted anything I could find related to FF like registry entries and profile folders) and reinstalled Nothing worked. My desktop PC is pretty much identical to laptop...same addons, same programs, but have not had the same issue. The only real diff is I've upgraded the laptop to Windows 11 (desktop still Win 10) but the issue did not occur immediately after, probably a week later. Any thoughts?

All Replies (3)

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cdchi1975 said

I close Firefox but the process remains open in task manager for a period of time.

Make sure you close the browser using; Windows: Menu > File > Exit Mac: Menu > Firefox > Quit Firefox Linux: Menu > File > Quit

Some users have reported issues when closing the browser using the X upper-right of the window.


. . . but after a while of . . . .

Start Firefox using Troubleshoot(Safe) Mode {web link}

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


https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding

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

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Hi thanks

I did try it in troubleshoot mode yesterday and seemed to work fine, sorry i forgot to mention that. Then restarted in normal without addons which id already removed and the problem reoccurred.

I'll check out those support articles.

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https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode

Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes), any userChrome.css/userContent.css files, and some other advanced features to help you assess whether these are causing the problem. If the problem goes away, that tells us one thing. If it does not, that tells us something else.


Use these links to create a new profile. Use this new profile as is. Is the problem still there?

https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

http://kb.mozillazine.org/Profile_folder_-_Firefox#Navigating_to_the_profile_folder

https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles


Type about:profiles<enter> in the address box.