1921750 - Firefox using too much RAM

Status: RESOLVED WORKSFORME

(Core :: Performance: General, defect)

Description

[humbertohenriques.qg]

Attachment: memory-report.json.gz

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0

Steps to reproduce:

In the last months firefox just was using too much ram no matter what i'm doing in it.

Actual results:

It just uses like 10gb of ram out of nowhere, as it shows on the resource manager and in the memory report i think.
https://i.imgur.com/ZBE5uiX.png

Comment 1

[BugBot [:suhaib / :marco]]

The Bugbug bot thinks this bug should belong to the 'Core::Performance' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[BugBot [:suhaib / :marco]]

This bug was moved into the Performance component.

:humbertohenriques.qg, could you make sure the following information is on this bug?

• For slowness or high CPU usage, capture a profile with http://profiler.firefox.com/, upload it and share the link here.
• ✅ For memory usage issues, capture a memory dump from about:memory and attach it to this bug.
• Troubleshooting information: Go to about:support, click "Copy raw data to clipboard", paste it into a file, save it, and attach the file here.

If the requested information is already in the bug, please confirm it is recent.

Thank you.

Comment 3

[humbertohenriques.qg]

Attachment: Troubleshooting information.txt

Comment 4

[humbertohenriques.qg]

Attachment: Firefox 2024-10-01 17.03 profile.json.gz

Comment 5

[Frank Doty [:fdoty]]

Removing perf impact flag and adding to memory investigation meta bu - please continue to provide additional details to help us remedy any possible issues

Comment 6

[Bas Schouten (:bas.schouten)]

GMail and Extensions seem to be responsible for the largest amount of memory usage here. It's possible the extensions are also somehow interfering with GMail memory usage, could you see if the bug gets better when running without extensions?

Comment 7

[humbertohenriques.qg]

(In reply to Bas Schouten (:bas.schouten) from comment #6)

GMail and Extensions seem to be responsible for the largest amount of memory usage here. It's possible the extensions are also somehow interfering with GMail memory usage, could you see if the bug gets better when running without extensions?

I found out it was the "Lightbeam" extension causing the memory leak, now it updated and the browser feels normal again. Thanks for everything!