Every time Firefox starts it produces a file not found page

[Owen]

Every time Firefox starts it produces a file not found page saying

File not found

Firefox can’t find the file at /snap/snapd/current/usr/bin/snap.

    Check the file name for capitalisation or other typing errors.
    Check to see if the file was moved, renamed or deleted.

There is no such file on the system. There is a /snap directory, but not /snap/snapd/ .

This happens regardless of the at Startup settings

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: firefox 1:1snap1-0ubuntu5
ProcVersionSignature: Ubuntu 6.8.0-11.11-generic 6.8.0-rc4
Uname: Linux 6.8.0-11-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.28.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Thu Mar 7 09:52:10 2024
InstallationDate: Installed on 2017-12-06 (2283 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
SnapChanges:
 ID Status Spawn Ready Summary
 1331 Done 2024-03-06T10:00:00Z 2024-03-06T10:00:25Z Refresh snaps "firefox", "snap-store"
SourcePackage: firefox
UpgradeStatus: Upgraded to noble on 2023-11-28 (100 days ago)