We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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 using too much memory

  • 3 replies
  • 1 has this problem
  • 1 view
  • Last reply by abmail100

abmail100
abmail100
more options

Hi, Firefox brings my computer to halt after a few minutes of usage. The only thing I did after opening the browser is go to support page and the FirefoxCP WebExtensions process memory usage went over 20 GB of memory.

I have tried restarting my MacBook a few times as well as restarting firefox, but nothing has helped. I’ve the latest version of FireFox installed, and using a MacBook Pro with 16GB of memory.

I haven't made any changes nor added anything new lately. I think it may have started after the last update.

Thank you for your time and support!

Al

Hi, Firefox brings my computer to halt after a few minutes of usage. The only thing I did after opening the browser is go to support page and the FirefoxCP WebExtensions process memory usage went over 20 GB of memory. I have tried restarting my MacBook a few times as well as restarting firefox, but nothing has helped. I’ve the latest version of FireFox installed, and using a MacBook Pro with 16GB of memory. I haven't made any changes nor added anything new lately. I think it may have started after the last update. Thank you for your time and support! Al

Chosen solution

Probably one of the extensions is malfunctioning. Try to find out what extension it is, by disabling it one by one.

Read this answer in context 👍 0

All Replies (3)

TyDraniu
TyDraniu
  • Top 10 Contributor
more options

Chosen Solution

Probably one of the extensions is malfunctioning. Try to find out what extension it is, by disabling it one by one.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can check the Firefox Task Manager (about:performance) and about:memory and about:processes pages.

abmail100
abmail100 Question owner
more options

Thank you both for your help. The Task Manager didn't show any issues. Task manger was the one using most memory, but only about 11mb. I turned off the top most extension on the list(Ant Video downloader), and restarted FireFox and that looks to have solved the issue. It's been over 5min and it's working well. I'm happy to be back on FireFox. Thank you!