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Firefox is using huge about of memory currently firefox is using 1798 MB amount of memory and firefox is slow.

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When several tabs are open, Firefox is using huge amount of memory and the whole system is getting slow. This likely happens in every version of Firefox till now isn't there any fix for this issue? i'm unable to browse the web as i have to close tabs and restart Firefox, It is eating up memory and slowing down my PC.

When several tabs are open, Firefox is using huge amount of memory and the whole system is getting slow. This likely happens in every version of Firefox till now isn't there any fix for this issue? i'm unable to browse the web as i have to close tabs and restart Firefox, It is eating up memory and slowing down my PC.

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Create a new profile as a test to check if your current profile is causing the problems.

See "Creating a profile":

If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files.


Do a clean reinstall and delete the Firefox program folder before reinstalling a fresh copy of Firefox.

Download a fresh Firefox copy and save the file to the desktop.

Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software.

  • Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you will also lose your personal data like bookmarks and passwords from profiles of other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

Your bookmarks and other profile data are stored in the Firefox Profile Folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.



Try to boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.