Firefox 커뮤니티 포럼

Recently upgraded to version 146.0 on Linux (Mint, Cinnamon)

YouTube will work fine when I first start the browser. Eventually videos will stop displaying and sidebar links will not be active.

From a separate forum article I cleared all site data and restarted Firefox. That fixes the problem for about 4 or 5 videos, then you need to rinse/repeat.

The latest incident seems to have been triggered when I tried to watch a video embedded in an X (Twitter) post. That failed. And the YT failed as a whole. X was open in a separate tab container at the time.

While I have both Privacy Badger and uBlock Origin installed, both are deactivated for YouTube.

See the attached images. The video is just not displaying, though the screen is reserving space for the player.

Both/all videos I have tested do work in Chromium.

I had so many instances of firefox and tabs that i decided i must organize them on tabgroups, i read they were secure enough and would be restored along with open tabs on new session. But after restarting all my "close and save" tab groups are missing! are they still saved? how can i recover them?

I was positively surprised recently when the new Firefox profile manager (about:profilemanager) was introduced. https://www.tech2geek.net/how-to-use-the-new-updated-profile-manager-in-firefox-2025/ is an article about that.

However, I thought it's just a new visual UI with an in-browser switcher for the existing profiles (that I already had setup). However, it does not appear so.

The differences I see:

1. 1. 1. old profile management

• was managed by `about:profiles` or when starting FIrefox with `-P`
• is saved in `~/firefox` and the `profiles.ini` clearly and quite obviously mentions them there, so it's easy to manage them.

I also found this old support article: https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles

1. 1. 1. new profile management

• automatically asks on startup if more than one profile exists
• is managed by `about:profilemanager` or with the Firefox burger menu
• seems to be saved in `~/.mozilla/firefox/Profile Groups` (Linux path here) in some .sqlite files, and I do not quite understand the format. Not mentioned in `profiles.ini`.
• also, when you change something here (even like opening a profile?), you cannot open `about:profiles` anymore, because it says "Some Firefox process has made changes to your profile, […] you need to restart Firefox", only after a restart further changes would be possible, which I find quite confusing but it also indicates somehow the features belong together?

And this seems to be the new one: https://support.mozilla.org/en-US/kb/profile-management#w_whats-the-difference-between-profiles-and-multi-account-containers

1. 1. Questions

• What are the differences here (I may have missed)?
• How can the new profile feature save so few files? Is it technically called "profile groups"?
• And the most important: How can I migrate an old profile? (In order to use the new features and GUI etc. I quite like)

Selecting "Help About Firefox" causes the window to appear but this window then freezes with no information. It is possible to close the window and continue with Firefox. This happen nearly always but occasionally works correctly. Current Firefox version is 146.0 but the problem is not limited this version. System is Kubuntu 24.04, KDE Plasma Version 5.27.12 and QT Version 5.15.13 I have tried several things. Deleting the .Moziila folder will permit the window to work once but after a restart stops working. Any new things to try would be appreciated.

Hi Mozilla I hav got a problem with Firefox on Kubuntu 24.04.3. Everytime the computer is restarted Firefox crashes the first time it's started. That's not a big problem, starting Firefox again don't take long. But the problems is exceeding. If i start Firefox by clicking a link in a mail in Thunderbird. And Firefox has not yet been started, It crashes, but now it's also invaliding the Task bar on the screen where Firefox was started. Invaliding means that I cannot start apps from that screens taskbar, and the clock has stalled, none of the tools works etc. The only possibility solution I have been able to figure out, is restart (It's like going back to Win 98). Sometimes I am able to start a app from that invalid taskbar. But it's not the one app that i clicked on. Even though I can trigger it via Thunderbird, the invaliding of the taskbar will occur after a while. And I have to restart. I am not sure if this is the right place to post. But Firefox is always involved, but maybe Thunderbird or Ubuntu was the right place? Every time Firefox crashes there is send a crash report to Mozilla, but is has been going on for a while, so i guess that nobody is looking at the crash report. If I use Chromium instead of Firefox I don't see the problem.

Hello again guys,

when I play a video in Firefox, it doesn't keep the screen on.

I need this accessibility feature.

This happens, at least, with Debian 12's Firefox (uptodate), like over 1 year now.

Please help with that too.

Thanks in advance!

Regards from Germany, Johannes

Good day,

when I click in Instagram in the notifications on a comment, I get redirected to to the comment section, but not to that certain comment, so I would have to scroll a lot.

Please help with that.

Thanks a lot!

I will contact Instagram about that now too, as maybe the issue is on their side, or on your side.

Regards from Germany, Johannes

I can not open : www.mobile.de What is here going wrong ??

Access denied  ?? I cannot understand this ?? Thanks for help, rainer banspach

How do I disable the cruft which appears in the URLbar? Specifically, the trackers detected symbol, the certificate verified symbol, the bookmark this page symbol, and the question mark symbols which appear on both the URLbar and the searchbar.

I installed firefox on ubuntu 24.04 following the guidelines from https://support.mozilla.org/en-US/kb/install-firefox-linux

I followed the direction from the section "Install Firefox .deb package for Debian-based distributions", adding the https://packages.mozilla.org/apt repository, prioritizing that over firefox snap from ubunto repors and finally installing firefox.

All good, now I have the latest firefox.

Question: what entry should I add to the "Unattended-Upgrade::Allowed-Origins" section of "/etc/apt/apt.conf.d/50unattended-upgrades" in order to enable unattended upgrades for the mozilla repo?

Googling this got me different contradictory recommendations that did not get my system to firefox 146 until I manually run the apt update/upgrade.

Thanks!

Bonjour,

A chaque demarrage de firefox, la taille des fenetres retaurees se reduit. L'environnement est du KDE Plasma X11 sur une Debian 12. La methode est simple: Ouvrir firefox. (Mode restauration de la session precedente active) Quitter firefox. Reouvrir firefox. La fenetre se reduit a la retauration des pages.

Comment remedier a cela? J'ai deja tenter avec un nouveau profil. Le probleme persiste.

Cordialement.

I use Linux mint and Firefox on all my computers a week ago I started to get errors on the Kroger's website. Today I used my laptop computer which has not been updated for several months and that Firefox works fine with the Kroger's website. Firefox updates has created problems with Kroger's website. How do I tell Firefox creators about this?

The subject says it all. The "tabs from other devices" are a) Shown as a long flat list of links, not in their individual tabs, which is disappointing b) right click does nothing - doesn't open them as advertised

I have a chromebook with linux enabled and installed firefox according to mozilla's instruction - via the sudo get-apt command. The cursor changes from the default to a very small adwaita. I've spent hours googling this issue and everyone I've come across had used some third party repo or was trying to shove in their own custom cursor theme. Literally all I want is my regular cursor back, and I have no clue why mozilla would have a specifically set cursor for their browser instead of just having it default to os. I don't really know what I'm doing here, but I cannot begin to state how tired I am of messing with this dead-end issue.

What version of Firefox actually allows you to add extensions? I'm running the most current version of Tumbleweed that ships with 144.0. Attempts to add extensions just sit there doing nothing until I close the tab. This sort of worked some time ago (I forget the version) but the inability of Firefox to allow add-ons/extensions is getting to be a joke. There are other browsers out there, ya know.

Tell me how to delete all my comments that I have made at Mozilla. None of my comments are valid and I wish to have them all deleted.

If you can please delete them for me.

Dennis Coleman decnexus7hd@gmail.com

I hover over bookmark folder, they expand, and the links the folder contains work. (Or) now 80 percent of the time, I hover over the bookmark folder, they don't expand, so I click on the folder to expand it, and 90 percent of the time, the links in the folder do nothing when clicked on. They won't even get highlighted, (selected) I restart firefox, and all works again, for about 10 seconds, and problem occurs again. It goes without saying it gets real frustrating restarting firefox over and over and over again to use another bookmark. I've never experienced this before. This only happens for me on firefox for Linux Mint 22.1. Firefox on windows 11 does not exhibit this problem. Please help, thanks. Cheers...