Forum der Gemeinschaft Firefox

Since around version 96 it seemed some new core changes made to how ff operates. any one care to share what the "big changes" were around that version rollout tldr?

since ver 96 ff became secondary browser. Using to test/isolate issues w/chromium (sigh). Now since ver 132 profile manager opens browser for correct profile everything looks good then 20seconds later ff crashes eorror: Exiting due to channel error

Inspiringly i see this forum is being used still so thought i would see if anyone has ideas what changes btwn ver 96/101 and 132 which may cause this new issue, maybe i can backout the changes and get back to using ff as a secondary backup again ....

IDK about anyone else but i LOOOOONG for the ole days when ff was a daily driver option on linux

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 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.

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 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)

Crash submitted, ID = 320cc808-4505-4cba-6e0f-9f2c2955d007 Still happens in troubleshoot mode. Still happens with extensions disabled (Ublock origin, Proton Pass) Started happening since Dec. 5, 2025 System is current with all Debian?Ubuntu updates installed (daily refreshes) Linux Kernel 6.8 on Lenovo Yoga i7 (ca. 2022) with Intel i5 & Intel graphics

Firefox version 145.0 in Linux Ubuntu 22.04.5 LTS. When I open Firefox all tabs from previous session are gone. On "Startup" I have checked "Open previous windows and tabs". Which worked before but not now. It is very frustrating. How do I fix? The Profile Manager opens the settings and "Open previous windows and tabs" is checked. Checking "ask before closing multiple tabs" doesn't help.

Bonjour, Sur mon P.C, il est impossible d'avoir ma position, votre logiciel me situe à Laval, alors que j'habite Saint-Etienne, du coup, il m'est impossible de regarder aucun site marchand style brico-dépôt ou autre puisqu'il me situe au mauvais endroit. Auriez-vous une solution à me proposer, d'avance merci.

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?

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.