1823324 - Firefox uses a huge amount of RAM (usually around 40gb) and is forced to quit

Status: RESOLVED INACTIVE

(Core :: Performance, defect)

Description

[otisjnz]

Attachment: memory-report.json.gz

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/111.0

Steps to reproduce:

I have maybe 5-6 tabs open when this bug occurs. I'm not doing anything specific when the bug occurs, whether that be writing a document, watching a video or just sitting on the home tab. Unfortunately there are not really any steps to reproduce to my knowledge.

Actual results:

Completely out of no where I get a popup asking me to force quit Firefox, showing that it's using over 40gb of memory. If I decide not to fore quit, Firefox just seizes up and refuses to work.

Expected results:

Nothing. Firefox should have stayed completely the same.

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]]]

The memory report doesn't show any process taking too much memory.
Do you see high memory usage in the TaskManager?

Do you think you could try to capture a performance profile when the issue happens
https://profiler.firefox.com/
and share the profile using "Upload local profile" button?

Comment 3

[otisjnz]

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

The memory report doesn't show any process taking too much memory.
Do you see high memory usage in the TaskManager?

Do you think you could try to capture a performance profile when the issue happens
https://profiler.firefox.com/
and share the profile using "Upload local profile" button?

Yeah the memory usage shows up in Activity Monitor. I'll upload the report next time it happens 👍

Comment 4

[Greg Mierzwinski [:sparky]]

Just setting the needinfo until the profile is provided.