1850822 - Firefox, with only one tab is taking up a lot of RAM is OSX

Status: RESOLVED INCOMPLETE

(Core :: Performance, defect)

Description

[hello]

Attachment: memory-report.json.gz

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/117.0

Steps to reproduce:

I opened a single window on OSX and noticed that RAM usage was quite high. Gets even higher as I open multiple tabs/windows

Actual results:

RAM usage was 1+ GB. See memory report.

Expected results:

RAM usage should be closer to the range of other browsers ~300-600 MB

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.

:hello, 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.