apt-get install libcanberra-gtk* did not work for me. Upgrade to 22.04 LTS did not work for me either.
My workaround was to remove Firefox snap completely and install install Firefox using apt as described below: sudo snap remove firefox cd ~/snap rm -r firefox sudo gedit /etc/apt/preferences.d/firefox-no-snap add lines below: Package: firefox* Pin: release o=Ubuntu* Pin-Priority: -1 sudo apt purge firefox sudo add-apt-repository ppa:mozillateam/ppa sudo apt-get update sudo apt install firefox echo 'Unattended-Upgrade::Allowed-Origins:: "LP-PPA- mozillateam:${distro_codename}";' | sudo tee /etc/apt/apt.conf.d/51unattended-upgrades-firefox Sources: https://www.debugpoint.com/2021/09/remove-firefox-snap-ubuntu/ https://ubuntuhandbook.org/index.php/2022/03/install-firefox-esr-ubuntu/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/872172 Title: libcanberra-gtk0 should recommend Gtk2 and Gtk3 module to fix: Gtk- Message: Failed to load module "canberra-gtk-module" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libcanberra/+bug/872172/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs