1803422 - Random Memory leaks in browser, one tab using 3-4GB of RAM

Status: RESOLVED INACTIVE

(Core :: Performance: General, defect)

Description

[tumppixp]

Attachment: memory-report.json.gz

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:107.0) Gecko/20100101 Firefox/107.0

Steps to reproduce:

Sometimes when using browser, it start to slow down randomly. Looking at Task Manager ram usage points towards memory leak

Actual results:

Excessive Ram usage caused by memory leak

Expected results:

Ram usage should be within reason

Comment 1

[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 2

[Olli Pettay [:smaug][[e-mail]]]

By any chance could you perhaps share information about the leaky website? If not here, perhaps send me email?

The memory report does show that one child process (something which loads a web page) uses lots of memory, mostly javascript.
And there seem to be quite a few addons too. Have you tried disabling some of the addons?

Comment 3

[tumppixp]

(In reply to Olli Pettay [:smaug][[e-mail]] from comment #2)

By any chance could you perhaps share information about the leaky website? If not here, perhaps send me email?

The memory report does show that one child process (something which loads a web page) uses lots of memory, mostly javascript.
And there seem to be quite a few addons too. Have you tried disabling some of the addons?

Hello, unfortunately I don't remember for sure the exact site for the memory-report. But it did happen multiple times with different sites, for example Reddit & Youtube. Closing tabs didn't help with the issue, only closing Firefox from task manager did temporarily, if I remember correctly I opened the memory report tool when only Firefox default home page was on (after closing other tabs).

I also did try running Firefox in safe-mode (which should disable extensions) when the issues were occurring and it didn't help with it. I haven't noticed the issues recurring after that day.

Comment 4

[Dave Hunt [:davehunt] [he/him] ⌚BST]

We don’t have enough data to reproduce and/or fix this issue. Please reopen or file a new bug with more information if you see it again. Details of our performance triage process can be found at https://wiki.mozilla.org/Performance/Triage.