Error report

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?

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

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

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).

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

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?

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

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

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

Let me install the flatpak and see what happens.

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.

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