firefox snap downgrades on 23.04 upgrade

[Robin Sheat]

I just upgraded to 23.04. When launching firefox, I got an error saying my profile was for a newer version. Checking snap, I saw:

channels:
  latest/stable: 112.0.1-1 2023-04-17 (2579) 253MB -

but:

installed: 111.0.1-2 (2517) 253MB -

and:

$ snap refresh firefox
snap "firefox" has no available updates

In the end,

$ snap refresh --stable firefox
firefox 112.0.1-1 from Mozilla✓ refreshed

did the job. See screenshot for the full snap info.

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: snap (not installed)
ProcVersionSignature: Ubuntu 6.2.0-20.20-generic 6.2.6
Uname: Linux 6.2.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 20 16:00:10 2023
InstallationDate: Installed on 2022-03-23 (393 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20220313)
SourcePackage: snap
UpgradeStatus: Upgraded to lunar on 2023-04-20 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Nick Moffitt (nick-moffitt)]

I worked around this myself with `snap switch --stable firefox && snap refresh firefox`

[Nick Moffitt (nick-moffitt)]

It seems as though there's a stable-23.04 track that the upgrade slips you onto, and that happens to be behind stable by a release or two.

[Paul White (paulw2u)]

Not a snapd problem but probably a delay in updating the Lunar track. Now fixed.