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Firefox (flatpak) is crashing when trying to print a document

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I am running Firefox (Flatpak) on Debian 12 and I use a Nelko thermal label printer. I had installed nelko-printer-driver previously and had no issues printing on Firefox but, due to an issue with Debian, I had to reinstall Debian 12. Now, when I try to print a document then Firefox immediately crashes. I have tried:

  • Uninstalling the Flatpak and deleting app data
  • Help > More Troubleshooting... > Clear Saved Print Settings
  • about:config > Reset modified printer settings
  • Uninstalled/reinstalled nelko-printer-driver
  • Restarted
I am running Firefox (Flatpak) on Debian 12 and I use a Nelko thermal label printer. I had installed nelko-printer-driver previously and had no issues printing on Firefox but, due to an issue with Debian, I had to reinstall Debian 12. Now, when I try to print a document then Firefox immediately crashes. I have tried: * Uninstalling the Flatpak and deleting app data * Help > More Troubleshooting... > Clear Saved Print Settings * about:config > Reset modified printer settings * Uninstalled/reinstalled nelko-printer-driver * Restarted

Saafara biñ tànn

Printing crash is now fixed in org.freedesktop.Platform 22.08.15. Ensure you have this version or do upgrade.

Jàng tontu lii ci fi mu bokk 👍 0

All Replies (13)

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Try Firefox from Mozilla. Download, unzip, and run firefox-bin from the folder and see if you have the same issue.

https://www.mozilla.org/en-US/firefox/all/#product-desktop-release

What desktop? X11 or Wayland? Have you tried testing on a VM or usb live stick?

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Okay, it looks like the issue is down to the Flatpak because the .deb worked just fine.

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The crash is inside the printer library (libcups). Make sure all your system and flatpak packages are up to date:

sudo apt update sudo apt upgrade flatpak update

Flatpak needs a portal for printing:

sudo apt install xdg-desktop-portal

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Apt and Flatpak are both up-to-date. xdg-desktop-portal was also already installed:

xdg-desktop-portal is already the newest version (1.16.0-2).

user319298449999468066908867859266460515316 moo ko soppali ci

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I have the same problem as well. Both the Flathub flatpak of Thunderbird and Firefox crash when you select "Print" from the menu or use the keyboard shortcut "Ctrl + P". No error is given, I can't find much in the system logs either. Wasn't a problem a month back, if I remember correctly.

Thunderbird: 115.1.1 Firefox: 116.0.3 (64-bit) Operating System: Fedora Linux 38 (Kinoite) KDE Plasma Version: 5.27.6 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Kernel Version: 6.4.10-200.fc38.x86_64 (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Core™ i5-4690K CPU @ 3.50GHz Memory: 15.5 GiB of RAM Graphics Processor: AMD Radeon RX 480 Graphics

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I don't encounter this crash with flatpak on Ubuntu 23.04 using the default or system print dialog.

I have the following portal packages installed:

xdg-dbus-proxy xdg-desktop-portal xdg-desktop-portal-gnome xdg-desktop-portal-gtk xdg-user-dirs xdg-user-dirs-gtk xdg-utils

Does it still happen when there are no physical printers connected?

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Yes, it does. It looks like this is a known issue.

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ChrisHRD said

I have the same problem as well. Both the Flathub flatpak of Thunderbird and Firefox crash when you select "Print" from the menu or use the keyboard shortcut "Ctrl + P". No error is given, I can't find much in the system logs either. Wasn't a problem a month back, if I remember correctly. Thunderbird: 115.1.1 Firefox: 116.0.3 (64-bit) Operating System: Fedora Linux 38 (Kinoite) KDE Plasma Version: 5.27.6 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Kernel Version: 6.4.10-200.fc38.x86_64 (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Core™ i5-4690K CPU @ 3.50GHz Memory: 15.5 GiB of RAM Graphics Processor: AMD Radeon RX 480 Graphics

What happens in X11?


Operating System: openSUSE Tumbleweed 20230818 KDE Plasma Version: 5.27.7 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Kernel Version: 6.4.9-1-default (64-bit) Graphics Platform: X11 Processors: 12 × Intel® Core™ i7-9850H CPU @ 2.60GHz Memory: 125.1 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 630 Manufacturer: HP Product Name: HP ZBook 17 G6

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I use X11 (due to my NVIDIA drivers), and it crashes just the same.

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Let me install the flatpak and see what happens.

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I had no issues printing with the Flatpak version. see screenshot Sounds like a job for strace to see what's happening when Firefox goes boom.

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Saafara yiñ Tànn

Printing crash is now fixed in org.freedesktop.Platform 22.08.15. Ensure you have this version or do upgrade.