1931411 - Reported disk usage for cookie, site data and cache seems wrong.

Status: RESOLVED DUPLICATE of bug 1585978

(Toolkit :: Data Sanitization, defect, P3)

Description

[mozilla]

Attachment: Firefox.jpg

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Steps to reproduce:

Viewed about:preferences#privacy

Actual results:

As seen in the attached picture, FF reports using 17,179,869,185 GB of disk space. I also get the banner across the top of the browser reporting FF is running out of disk space.

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0

Expected results:

I would have expect between 1 and 2 GB of reported disk usage. I have a 1TB drive and 350GB free.

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Core::Privacy: Anti-Tracking' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Harshit Sohaney [:hsohaney]]

This happens due to a overflow issue if I recall. It's assigning the max number possible. I can't seem to find the other bugs that we have related to this but maybe this sumo page can be of some help https://support.mozilla.org/bm/questions/1360864.

Are there any specific settings you have enabled or have some more information about when you first noticed this behaviour?

Comment 3

[mozilla]

I don't have any setting changed from defaults that I know of. I do have AdBlockPlus installed. I use FF on this computer almost exclusively for YouTube. It tends to stay open for weeks at a time.

The first indication of any sort of issue was the banner across the top reporting excessive disk usage. I was not doing anything unique at the time and was just watching videos. I ended up closing FF down and restarting it and the problem went away. I have been unable to recreate it since.

Right now if I check the disk usage, it shows 1GB for temporary cached files and page and 196MB cookie and site data. Basically, all the site data is youtube.com. Tiny amount for google.com and adblock.com

Comment 4

[Emma Zühlcke [:emz]]

The inflated numbers are probably coming from the backend. Most likely the quota manager. I would suggest to move the bug there for further investigation. It's also possible that there is already a bug like this one file. I've seen this issue reported on Reddit multiple times.

Comment 5

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

A needinfo is requested from the reporter, however, the reporter is inactive on Bugzilla. Given that the bug is still UNCONFIRMED, closing the bug as incomplete.

For more information, please visit BugBot documentation.

Comment 6

[Manuel Bucher [:manuel] {{ fyi: PTO Jul 26 - Aug 17 }}]

It is a real bug seen by multiple users. We should keep track on it.