1815205 - Huge Memory Leak

Status: RESOLVED INACTIVE

(Core :: Performance, defect)

Description

[Georgi]

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

Steps to reproduce:

It happens randomly after 106 or 107 builds and hasn't been fixed yet. Currently, using 109.0.1. The same happens when working with a lot of bookmarks. I have over 40k bookmarks and when I am working with them to do some maintenance the memory usage is huge again.

https://i.ibb.co/b5HWSP4/Image-412.png

I'll try to collect a new memory-report.json.gz when the problem occurs, since I forgot to check the "anonymize" button.

Is it contains any sensitive data like passwords and bookmarks or only the sites opened in the tabs?

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Firefox::Bookmarks & History' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Mark Banner (:standard8)]

This needs some analysis first. Comment 0 is unclear if this happens when not working with bookmarks as well as when with.

Comment 3

[Georgi]

Hi Mark,

Yes, it does happen even when I am not working with bookmarks. Sometimes I have over 100+ tabs with no problems, and sometimes I only have a few tabs opened with a problem. Today, the problem didn't occur immediately, but after a few hours of work with the same amount of opened tabs. I refreshed them from time to time to check the mails and then suddenly I noticed a huge lag in the computer work. It was irresponsible. I opened the Task Manager to check what's going on, and I noticed the memory leak. I already knew it was Firefox, since this is happening a lot for the last few months.

Tried to disable the extensions, but didn't find the culprit. Didn't try to refresh the profile, since I am using it from a long time (with no problems until the last few builds of Firefox).

Thanks for the reply.

Comment 4

[Andre Klapper]

Please enter the address
about:memory?verbose
in the address bar and attach (using the "Attach New File" link above) the output here.

Comment 5

[Georgi]

Attachment: memory-report.json.gz

Yesterday I was able to measure and save the data while the leak occurred.
Hope this will help.

Btw, the leak doesn't happen every time when I am browsing, but it still happens from time to time.

But it occurs every time when I am managing my bookmarks. I guess I should reduce their number.

Comment 6

[Georgi]

Hello,

It happened again, and this time I was unable to grab a memory dump.

However, I noticed that the leak occurred on this page:

https://yahoo.mydashboard.oath.com/details/?propertyId

Probably interacted with uBlock Origin regarding the blocked objects on the page.

I succeeded on disabling the add-on, but still wasn't able to export the memory dump. Only after closing the yahoo page, the memory usage started to drop, but still the about:memory didn't react. After I killed Firefox and restarted, it all went to normal. When I restored the previous opened tabs (with the yahoo page) the problem appeared again. Even the disk usage was huge, but it seems that I made the screenshot a bit earlier. I hope this helps a bit.

https://i.ibb.co/5rXBCqV/Image-413.png

Comment 7

[Georgi]

Attachment: memory-report.json.gz

Comment 8

[Georgi]

Just happened again with Mozilla 111.0 while watching Twitch and browsing HLTV.org.

New memory report attached.

Comment 9

[Georgi]

Attachment: memory-report.json.gz

Comment 10

[Georgi]

And happened today again on HTLT.

https://i.ibb.co/vkdSNbg/FF.png

New report attached.

Comment 11

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

This bug was moved into the Performance component.

:gogo_sz, 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 12

[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. Details of our performance triage process can be found at https://wiki.mozilla.org/Performance/Triage.