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!

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

Huge RAM consumption, over time

  • 5 replies
  • 1 has this problem
  • 1 view
  • Last reply by Bithiah

more options

I looked at various tips on how to solve a RAM problem. But I don't understand why my firefox takes about 800MB of RAM after startup, but sometimes after the time of use it suddenly takes 16GB of RAM. Does Mozilla not have a tool to track which part of Firefox uses so much RAM?

I looked at various tips on how to solve a RAM problem. But I don't understand why my firefox takes about 800MB of RAM after startup, but sometimes after the time of use it suddenly takes 16GB of RAM. Does Mozilla not have a tool to track which part of Firefox uses so much RAM?
Attached screenshots

Chosen solution

Adblock Plus is a known RAM eater. Try to install uBlock Origin instead of it.

Read this answer in context 👍 1

All Replies (5)

more options

Photo 2 shows that everything is OK in Firefox but it consumes 16GB of memory and is terribly slow. The PC has 32GB of memory.

more options

Chosen Solution

Adblock Plus is a known RAM eater. Try to install uBlock Origin instead of it.

more options

I'm testing the uBlock Origin, and it looks good. Thanks for advice. Sadly, Firefox does not have a tool that shows which part of the browser consumes how much RAM.

more options

Hey there!

See the following website on what to do to fix the performance issue:

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

Hope this helps!

Kind regards,

Bithiah

more options

Hey there!

If your problem is solved, please mark an answer as a solution to let others know this thread is finished. Thanks!

Kind regards,

Bithiah