Firefox Support Forum

Firefox 102.0 (65 bit) on Ubuntu 20.04, for some reason has begun downloading mp3 files as mpga files (Google Chrome doesn't do this). This forces me to edit the extension as I download, since my mp3 player doesn't recognize the mpga extension. How can I fix this?

In the Flatpak version of Firefox 103.0.2 the resize handles do not appear when you hover over any of the 4 edges of the firefox window unless you hold down the left mouse button, then they appear, but you have to get the mouse pointer just right before pressing the left mouse button. I notice on several forums that this has been like this for the last 2 months, are the team at Mozilla working on a fix, cheers

Hi, wonderful crew I have this annoying issue: when I want to print a page and I open the Print menu from the "hamburger" button, the preview open but on the printer list I can see only the PDF printer, not my default printer or any other printer. Also if I click on the link "Print thru the system printer window" I see only "Print on file" and "Print on LPR" I tried the same on Chomium and there I can see my default printer My system is a Ubuntu desktop 22.04 recently updated from 20.04 LTS Thank for your work

When Firefox is running and I lock the screen and unlock it again, the gui seems to be somehow broken. On the picture attached one can see a graphical issue (black frame) on the right side of the browser when resizing the window. When I try to make it smaller starting from the left, the window disappears inside the black frame on the right side. There are also issues regarding the mouse. It is not possible to see which part of the text is already selected when pressing and holding the left mouse button during text selection (no orange highlighting of the text). When I release the left button the text is selected.

This is the second PC with Ubuntu 22.04 where this happens. Both PCs were upgraded from Ubuntu 20.04, so maybe it has to do something with that.

I follow the instruction in the kb of firefox to reset the download settings. But i keep not being able to download any file from any website. I currently have the version 107 in Ubuntu. This problem occur after the last upgrade. How to fix this? Thank you.

I have my login credentials saved in Firefox on a Windows PC. I just installed Ubuntu on another PC. I am signed into Firefox on both computers and Sync is enabled. When the Sync finished up on the Ubuntu PC, everything came across with the exception of the login credentials. Has anyone experienced something like this before?

I am using Ubuntu Firefox 110.0 (64-bit) on Ubuntu 22.04 x86_64. I am unable to play contents on Disney+, Amazon Prime Video Netflix and such. I was streaming fine until a few months ago. I have checked my settings and they are all properly set. At the time I am writing this report, the Widevine Content Decryption Module is at Version 4.10.2557.0, updated to its latest release. Obviously DRM content is enabled in settings. Changing the useragent did not solve the problem. I have seen this problem reported before for MacOs users but I could not find anything for linux users. Am I the only one having this problem? I hope someone can help. Thanks

OS version: Ubuntu 22.04.1 LTS (jammy), 64-bit (amd64, x86_64). Firefox version: 110.0 (64-bit) (NOTE: the issue was noticed with version 109.0, too)

Firefox package was installed on Ubuntu through 'APT', using the Mozilla Team repository (https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu/). It caught my attention that an excessive amount of Firefox related 'DENIED' AppArmor log messages is generated during the browser activity.

According to messages, Firefox is occasionally denied read access to '/sys/devices/' area and read/write access to 'oom_score_adj' target in '/proc/'. Could somebody clarify why would that access be required for regular browser operations? I'm a bit puzzled as I haven't noticed anything similar with the older Ubuntu and Firefox versions. A complete suppression of those messages is also an option as long as there's no negative impact on application's performance.

I already posted this question to Ubuntu forum but seems like nobody there could provide an explanation. I'd appreciate any input or hint.

Following is the sample of referred log messages:

---SNIP--- [Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.813:39): apparmor="DENIED" operation="capable" profile="firefox" pid=2231 comm="firefox" capability=21 capname="sys_admin"

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.877:40): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.877:41): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.877:42): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.877:43): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.885:44): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.885:45): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.885:46): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.885:47): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0 . . . . . . [Fri Feb 24 19:16:22 2023] audit: type=1400 audit(1674000983.040:56): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2347/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000

[Fri Feb 24 19:16:35 2023] audit: type=1400 audit(1674000995.296:57): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2347/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000

[Fri Feb 24 19:16:39 2023] audit: type=1400 audit(1674000999.280:58): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2347/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000

[Fri Feb 24 19:16:41 2023] audit: type=1400 audit(1674001001.768:59): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2455/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000

[Fri Feb 24 19:16:41 2023] audit: type=1400 audit(1674001001.768:60): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2458/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000 ---SNIP---

I'm following a tutorial to install cinnamon desktop which includes Firefox snap on my Ubuntu LXD container, but the installation with snap fails. Does anyone know why it happens and how to fix it?

Preparing to unpack .../firefox_1%3a1snap1-0ubuntu2_amd64.deb ... => Installing the firefox snap ==> Checking connectivity with the snap store ==> Installing the firefox snap error: cannot perform the following tasks: - Setup snap "firefox" (2487) security profiles (cannot setup udev for snap "firefox": cannot reload udev rules: exit status 1 udev output: Failed to send reload request: No such file or directory ) - Setup snap "firefox" (2487) security profiles (cannot reload udev rules: exit status 1 udev output: Failed to send reload request: No such file or directory ) - Setup snap "firefox" (2487) security profiles for auto-connections (cannot reload udev rules: exit status 1 udev output: Failed to send reload request: No such file or directory ) dpkg: error processing archive /var/cache/apt/archives/firefox_1%3a1snap1-0ubuntu2_amd64.deb (--unpack):

new firefox package pre-installation script subprocess returned error exit status 1

Errors were encountered while processing:

/var/cache/apt/archives/firefox_1%3a1snap1-0ubuntu2_amd64.deb

E: Sub-process /usr/bin/dpkg returned an error code (1)

I am running Ubuntu 18.04 and the current version of firefox is 112.0.1. The problem has occurred on two different machines.

My Friday routine normally involves updating my computers. Normally, I start firefox and get some preliminary work things out of the way before using sudo apt-get update/upgrade (sudo apt update) to update my system.

However, firefox has interjected and updated itself twice in the past month or so. When it says it has done the update and needs to be restarted, I click the button and it restarts. This would not be a problem since it was going to get updated anyway, however, when I go to start sudo apt-get upgrade to update the rest of my system, I get the following error:

E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable) E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?

This lock traces back to firefox and persists for several hours. The first time I assumed something weird just happened resulting in the lock not being released when firefox restarted after its update. However, since this is the second time that it has happened there is something going on with your updater not releasing properly. Normally, the lock is released immediately after the updating software is finished updating, however, this is not the case with firefox right now.

Please fix this bug.

I updated Firefox and an old version remains on the "show applications" screen. I suspected it might be another profile, so I went to about:profiles and removed it, but it's still there. As I am relatively new to Linux (Ubuntu specifically), I would appreciate some help with this issue.

I want to attach a file and I click on a button (everything works perfectly on Chrome). When I click, in the console I get this error:

(firefox:3264): Gtk-WARNING **: 13:52:46.781: Can't open portal file chooser: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: L’interface « org.freedesktop.portal.FileChooser » n’existe pas pour l’objet à l’emplacement /org/freedesktop/portal/desktop

Of course, nothing happens when I click. I have Ubuntu 22.04 and apparently Firefox in installed with snap, and I have this problem since snap is used to install Firefox.

If it's useful:

snap list Nom Version Révision Suivi Éditeur Notes bare 1.0 5 latest/stable canonical✓ base code b3e4e68a 129 latest/stable vscode✓ classic core 16-2.58.3 14946 latest/stable canonical✓ core core18 20230503 2751 latest/stable canonical✓ base core20 20230503 1891 latest/stable canonical✓ base core22 20230503 634 latest/stable canonical✓ base firefox 113.0.2-1 2710 latest/stable mozilla✓ - gnome-3-38-2004 0+git.6f39565 140 latest/stable/… canonical✓ - gnome-42-2204 0+git.587e965 102 latest/stable canonical✓ - gtk-common-themes 0.1-81-g442e511 1535 latest/stable/… canonical✓ - snap-store 41.3-71-g709398e 959 latest/stable/… canonical✓ - snapd 2.59.2 19122 latest/stable canonical✓ snapd snapd-desktop-integration 0.9 83 latest/stable/… canonical✓ -

This message is the last I'm writing before I definitely move to Chrome. I hope I'll get the help I couldn't find on other places (I saw a lot of answers telling to deactivate snap, adding a ppa or some solutions like these).

I'm having really odd behavior using Firefox (linux) with Microsoft 365 web apps (outlook, word, excel, etc). Its happening various distros too. Is there a known issue at this time with FF and 365 web apps?

   Excel - cell content deletion on moving through cells.
   Word - line content deletion on hitting carriage return.
   Mail/Cal - Webapp not displaying content on double clicking emails or calendar events.

Found a few sporadic similar reports from users on various forums, but no official note that it was a known bug. Assuming it isn't widespread - anyone here have any anecdotal reports of similar issues. Seems to only affect the linux distro versions of FF.

This renders the web app sites unusable with Firefox so I have had to use another browser for these apps. As these apps are ubiquitous with work and productivity, it's rendering Firefox as a second-choice browser unfortunately. No one really enjoys having to "pick the right browser" for work or play.

Is there any way to resolve these issues? Hoping someone has some insight.

So I have an Excel workbook in my onedrive from MS, It was working fine on my firefox browser in my Ubuntu OS, last week it started to delete my cell's information whenever I pressed the enter, tab or arrow keys, I contacted the MS support and they get me to opened the same file on a chrome browser and worked fine... I still want to use my firefox browser but this problem is very annoying, please help me sort it out!!!

I'm in Ubuntu 22.04, logged in as user-me. I would like to open /home/user-other/path/to/index.html with firefox.

user-me is in the group user-other, and everything under /home/user-other has permission 755. I can open /home/user-other/path/to/index.html in the terminal without problem.

If I simply type /home/user-other/path/to/index.html in the address bar of firefox, it gives "Access to the file was denied". If I open the file with the file picker, the page is loaded, but as "file:///run/user/1000/doc/some-hax-number/index.html", and the resources in the page are not properly loaded.

How can I properly open /home/user-other/path/to/index.html?

Youtube live streams work fine on windows, but they don't work at all under Linux. Firefox is up to date on both my operating systems that I dual-boot. Getting an NS_BINDING_ABORTED error in the network console. I deleted my profile to be sure it wasn't due to any extensions or settings I've changed, and the problem remains. The Linux itself is also a fresh installation, and I had to download a tgz version and remove the snap to get the latest, because Ubuntu was stuck at 99.

Hi!

I have encountered this really annoying problem on my Firefox app. I give details below. I installed Mozilla Firefox on my freshly installed Ubuntu 22.04.1 LTS. I tried installing it from Snap Store. However, when I tried saving an image from the web (or, truthfully, any other file chosen by the "Save As..." selection), nothing happened, again and again. I tried many things, including following relevant guides from the internet, but nothing changed. The Firefox version is the 107.0.1 (64-bit), a Mozilla Firefox Snap for Ubuntu canonical-002- 1.0. I, also, have to report some other things, as well. When tried installing the browser from the internet (I downloaded a compressed file, containing the executable), the same function seemed to work. I, now, use the executable to access Firefox. However, firstly, because other difficulties (not problems, but difficulties) arise and, secondly, because I'd really like ti use, mostly, snaps, I report this bug here requesting for help, as well.

Any helpful answer will be appreciated!

Thank you!

I have recently updated to Xubuntu 22 and in the process my firefox was migrated to the snap version. Now firefox is using its own mouse pointer style (smaller pointer, "hand with cuff pointing left" instead of "hand pointing up" over links). I can edit the system style of my mouse pointer, but that does not change the mouse pointer while in Firefox. This seems the same problem like these two questions: - https://support.mozilla.org/en-US/questions/1380997 - https://support.mozilla.org/en-US/questions/1369875

How do I make Firefox use the system settings for the mouse pointer? Or at least how do I change the mouse pointer style/settings for Firefox snap at all?

For reference my Firefox Version is 104.0.2 (64-bit) Mozilla Firefox Snap for Ubuntu. My desktop environment is xfce 4.16.

Thanks, Peter