1894286 - Memory Size in Firefox slowly increasing even after closing sites

Status: UNCONFIRMED

(Core :: Performance, defect)

Description

[Anon2057]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:125.0) Gecko/20100101 Firefox/125.0

Steps to reproduce:

Using various sites for long periods of time. keep Firefox open for multiple days at a time.

It cannot be troubleshooted in a short period. The ram balloons over a period of days to the crash occurring by around a week.'

original Addon list:

'Improve Youtube!'
600% sound volume
7TV
Auto Tab Discard
Better TTV
Libredirect
LiveTL
Privacy Badger
Tampermonkey (No scripts enabled)
Ublock
User-Agent Switcher and Manager

i'd say about 40 tabs, mix of:
Danbooru
Youtube
Kbin
Reddit
Amazon
game8.co
libreddit

Addon List on second test:
Ublock
600% sound volume

Currently running in troubleshoot mode, too soon to say how memory is currently.

I have whitelisted only youtube.com due to recommendations from other sites, but this was done during second test, memory still increased.

I have closed processes in about:processes. I noticed that GPU in particular remained at 1 GB. It is currently running at half of that.

I originally started looking into this 3 months ago. I have changed hardware since then and issues persist.

Actual results:

Memory usage increased. If ignored Firefox starts to skip on videos. If ignored further Firefox will hang and crash.

Skipping starts after a day or so, crash will usually be a week at the maximum

Expected results:

Memory should not have increased to this point. When reopening even if all open tabs are made active, the memory will be 1/2 to a quarter of the size.

Comment 1

[Amanita]

I hope you use Ublock Origin and not Ublock. But lets see if it is an issue with "the bad Ublock"

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

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 3

[Anon2057]

(In reply to Amanita from comment #1)

I hope you use Ublock Origin and not Ublock. But lets see if it is an issue with "the bad Ublock"

Yes Ublock Orgin

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

This bug was moved into the Performance component.

:Anon2057, 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 5

[Anon2057]

I will see if I can do this. I may be awhile as i'm trying to see if I can run it to the point of another crash. So far the memory is at around 6GB but the amount of tabs open hasn't changed much.

But so far I can run the profiler without any issues.

Comment 6

[Anon2057]

Stopped it today. It is now at 13GB

7GB up from the previous post.

https://share.firefox.dev/4anxyiZ

Comment 7

[Anon2057]

Attachment: memory-report.jsonanon.gz

Comment 8

[Anon2057]

I did the "save memory reports" as well, not sure if that was the correct option there. I'll keep the Firefox open in this state until tomorrow, but it usually crashes when it reaches 15-16GB.