Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Open

Firefox eating a lot of free space

Firefox Performance and connectivity
jbr replied
Francois
Francois

Hello, I noticed that my system disk free space was declining. After some checks I found that underr

C:\Users\François\AppData\Roaming\Mozilla\Firefox\Profiles\wjZDDDl0.Profil 1\storage\to-be-removed

were a lot of directory with GBo of data. In may I deleted all these subdirectories and went from 23 to 33 Go free space Yesterday same thing I went from 25 to 41 Go free space.

Why are these files keeping accumulating and are not removed automatically as per name ? Thanks. I'm using Windows 11 Famille Version 25H2 Installé le 25/11/2024 Build du système d’exploitation 26200.8737 Pack de fonctionnalités Pack d’expérience de fonctionnalités Windows 1000.26100.334.0

and Firefox 152.0.5 (64 bits)

Hello, I noticed that my system disk free space was declining. After some checks I found that underr C:\Users\François\AppData\Roaming\Mozilla\Firefox\Profiles\wjZDDDl0.Profil 1\storage\to-be-removed were a lot of directory with GBo of data. In may I deleted all these subdirectories and went from 23 to 33 Go free space Yesterday same thing I went from 25 to 41 Go free space. Why are these files keeping accumulating and are not removed automatically as per name ? Thanks. I'm using Windows 11 Famille Version 25H2 Installé le ‎25/‎11/‎2024 Build du système d’exploitation 26200.8737 Pack de fonctionnalités Pack d’expérience de fonctionnalités Windows 1000.26100.334.0 and Firefox 152.0.5 (64 bits)

All Replies (1)

jbr
jbr
  • Top 10 Contributor

It is site data that should get eventually cleaned up after hitting certain quota. Maybe the background task does not have access to these? Could you eventually follow up in

if none of the tips in the threads help to improve this on your side? Thanks.

Yi tambaya

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.