Firefox Community Forum

After updating FF to v. 136.0 in Linux Mint 22.04, I noticed a problem with video playback in Facebook in some posts. A black screen appears with the message "Sorry, there were problems playing this video". The problem also occurs after disabling all plugins and deleting the user.js file from the profile. The problem does not occur after starting firefox in troubleshoot mode, but then hardware acceleration using the GPU does not work (Compositing: WebRender (Software)). I noticed that in version 136 there were some significant changes in the topic of video decoding. https://www.phoronix.com/forums/forum/software/desktop-linux/1524008-firefox-136-beta-finally-enables-hardware-video-decoding-for-amd-gpus-on-linux-by-default I have an NVIDIA GT1030 GPU with 2 MB VRAM.

Christopher

How does Firefox determine where the Kerberos keytab is located?

The default location for Kerberos keytabs on a Linux box is within /tmp. /tmp is very temporary these days and is wiped on reboot and it looks like on the various power save/restore.

So, I decided to move the keytabs to a static location to allow them to work according to the usual schedules and timeouts, instead of being wiped out on a whim. I settled on /var/lib/krb5tabs/krb5cc_%u I configured that within /etc/krb5.conf

I use pam_winbind from Samba to do the Kerberos login and the keytab is filled in and the environment var KRB5CCNAME is set correctly.

Before the change of the location of the keytab from the defaults, everything works fine apart from after a resume and creds need re entering (which is the pain I am trying to avoid).

After the change, Evolution is still able to authenticate via Kerberos but Firefox is not. So, does FF just assume defaults or actually follow KRB5CCNAME - which seems to be the standard for Kerberos?

using firefox premium in Mint 21.3 Cinnamon youtube videos always start 11 seconds in. i have NO ad-blockers. The same video using Chromium on the same platform does NOT act the same way. Wazzz-up?? tom t

I am getting notices that I need to update my FireFox. I went to update and saw this message "updates disabled by your system administrator". What do I need to do to be able to do the update. Email:[edited from community support forum]

When i use PIP in Debian 12 using desktop environment XFCE, I cannot move the PIP to another desktop using alt+space. The menu is greyed out.

this prevents me from moving the PIP to another screen. Is there a solution?

Hi, Is there a way to get rid of the messages about the upcoming browser update for Firefox on Linux?

The message appears at the second launch on a new profile and then at random moments in new tab. Message attached.

I tried already whats below, but its not helping: user_pref("app.update.enabled", false); user_pref("app.update.silent", true); user_pref("browser.startup.homepage_override.mstone", "ignore"); user_pref("startup.homepage_welcome_url.additional", "");

Hello, is it possible to disable or alter the hotkey for viewing source? It is overriding my config for gtk-3.0, settings.ini, where gtk-key-theme-name=emacs. While I do have the emacs keybindings go to start of line, go to end of line, and delete to end of line but not this (personally) most used hotkey. I looked in about:config for source, but those appear to only modify the tab/window/editor which the source is viewed in, but not the shortcut to reach it. It does work for most of my applications, except fltk-based ones and ones where the application sets its own macro overriding the gtk config.

Subject: Assistance Required for Frequent Firefox Crashes on Ubuntu

Dear Developer Team,

I am facing persistent issues with Firefox crashing on my Ubuntu PC, and the problem has been ongoing for the past 40–50 days. Despite multiple attempts at troubleshooting—including uninstalling and reinstalling Firefox, clearing all caches, and other measures—the issue remains unresolved.

I’ve noticed that Firefox works for a few days after reinstallation, but then problems begin to surface, such as a half-screen display. Eventually, after restarting the PC, the browser starts crashing again.

Could you please investigate this matter urgently and provide a resolution? Additionally, I would appreciate it if you could clarify whether this might be related to a RAM issue or some other underlying cause.

Looking forward to your assistance.

Best regards, zimmi

I recently updated Firefox Linux on Chromebook and now when I open a Google Doc it displays fine and I can place the cursor with mouse but when typing no characters appear in doc. I checked Firefox on Windows and it edits same docs fine.

I got this new Chromebook, and now I'm having issues using YouTube. When I select a video to watch, a message pops up at the top saying "To play video, you may need to install the required video codecs." I am able to watch the video I selected anyhow, with some minor issues with the picture and its frames I believe, however, when I try to watch a different video, it does not work. Sometimes it will play for a short bit, but will then stop, and start buffering. When I then refresh the page, the video will not play and will only buffer. I am not sure what to do, and if this is an issue with the browser, or the device itself, please help?

After I upgraded my system (NixOS) from 23.05 to 24.11, both Firefox and Thunderbird experience a 30 second delay between doing right click and the context menu appearing.

After clicking on a menu option, there is another 30 second delay before the menu disappears and the action is carried out.

Happens also in safe mode, and after deleting the .mozilla directory and starting from scratch.

No other GUI on the system (including non-gecko browsers) are affected.

Firefox version is 133.0.3