1896500 - Memory Leak on newest version. 14 task manager occurrences from one tab open using over a gig of memory. Laptop is overheating and only fix is reset computer.

Status: UNCONFIRMED

(Core :: Performance, defect)

Description

[QABDJ]

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

Steps to reproduce:

Open Firefox. Happens every single time.

Actual results:

Memory jumps up. I've refreshed Firefox. Removed all extensions. Nothing fixes it.

Expected results:

Normal memory usage and a laptop that doesn't overheat.

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.

:QABDJ, 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

[yoitsbigmike1]

i have 32 gigs of ram amd ryzen 7 7800x3d and my ram will randomly be at 99 percent until i close a random open tab
what i dont understand is it doesnt matter what webpage and it takes a while for it to happen.

Comment 4

[Chris Coleman]

Same... Firefox leaks memory until it consumes all of system RAM!

Firefox 130.0b6.

Over an hour or two of usage, Firefox leaks enough RAM to consume about 99% of system RAM.

Firefox eventually quits by itself.

In Process Explorer, go to the top level firefox.exe process, go to Properties, look and you'll see Virtual size 2,163,827,624 K or 2 TB !!!

Killing the firefox.exe top level process does recover all leaked RAM, bringing total system usage down to about 3GB.

Would really like Firefox to run without leaking memory.

I saved memory-report.json.gz, yet there is no attach file option.

Comment 5

[Chris Coleman]

Attachment: memory-report.json.gz

Not the OP.
This is a saved memory report from Firefox 130.0b6.
Huge memory leak consumes all system ram 16GB until firefox quits or I exit firefox.

Comment 6

[Frank Doty [:fdoty]]

Thank you for this report, I'm adding it to our review

Comment 7

[Johannes Wüller]

I think I'm seeing this problem too.

Here is a 5s profile taken from the main process in about:processes using around 11 GB, in addition to the attached data: https://share.firefox.dev/3T66JKc

Comment 8

[Johannes Wüller]

Attachment: memory-report.json.gz

Comment 9

[Johannes Wüller]

Attachment: support-info.json