1849780 - Firefox uses all RAM when run for several days

Status: RESOLVED INACTIVE

(Core :: Performance: General, defect)

Description

[varga.samu]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/116.0

Steps to reproduce:

I let Firefox run without closing tabs and windows I was using for at least 5 days. There were usually at least 2 windows, and more than 10 tabs.
It made the system lag, so I closed Firefox, and then it went back to normal.

Actual results:

Firefox made the system slow, laggy, or unresponsive in certain apps.

Expected results:

It should behave like normal and stop using all the RAM even on extended uses.

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

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

This bug was moved into the Performance component.

:varga.samu, 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

[varga.samu]

Attachment: firefox_troubleshoot_20230829.txt

about:support dump.

I tried to make an about:memory dump, but firefox crashed...

Comment 4

[Sean Feng [:sefeng]]

I think this is something known for a long time and we don't have a great way to fix this.

Does the profiler work? A profile of what Firefox is doing would be helpful

Comment 5

[Dave Hunt [:davehunt] [he/him] ⌚BST]

With no answer from the reporter, 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.