1866034 - High memory usage when running Firefox

Status: RESOLVED WORKSFORME

(Core :: Performance: General, defect)

Description

[Kyle]

Attachment: memory-report.json.gz

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:120.0) Gecko/20100101 Firefox/120.0

Steps to reproduce:

Open Firefox and browse

Actual results:

Always uses 1000+ MB of memory - regularly over 2000MB

Expected results:

Not use that amount of memory

Comment 1

[Kyle]

(In reply to Kyle from comment #0)

Created attachment 9364951 [details]
memory-report.json.gz

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:120.0) Gecko/20100101 Firefox/120.0

Steps to reproduce:

Open Firefox and browse

Actual results:

Always uses 1000+ MB of memory - regularly over 2000MB when watching YouTube.

Expected results:

Not use that amount of memory

Comment 2

[BugBot [:suhaib / :marco]]

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

[BugBot [:suhaib / :marco]]

This bug was moved into the Performance component.

:renwickk, 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 4

[Bas Schouten (:bas.schouten)]

Looking at the memory report most of this appears to be gmail, which, uses a lot of memory, but that is not something Firefox can do anything about. Please re-open if you see significantly less memory being used in another browser for these websites.