It seems that the snap version was selected by unattended-upgrades. From /var/log/unattended-upgrades/unattended-upgrades.log:
2026-05-20 11:25:37,647 INFO Packages that are kept back: 2026-05-20 11:25:37,911 INFO Packages that will be upgraded: firefox 2026-05-20 11:25:37,911 INFO Writing dpkg log to /var/log/unattended-upgrades/unattended-upgrades-dpkg.log From /var/log/unattended-upgrades/unattended-upgrades-dpkg.log Log started: 2026-05-20 11:25:38 Preconfiguring packages ... Preconfiguring packages ... => Installing the firefox snap ==> Checking connectivity with the snap store ==> Installing the firefox snap -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2153409 Title: Firefox snap version installed even when Mozilla Debian version is with higher priority To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2153409/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
