When trying to update Thunderbird on Ubuntu 24.04 the installer says "Quit to Update". I have quit Thunderbird and unpinned from task bar, restarted and still the same. I then decided to uninstall and used 'sudo apt remove Thunderbird' which says it was removed, I then used 'sudo apt purge Thunderbird' which comes back with Package 'Thunderbird' is not installed, so not removed. So tried again, Guess what same result! Any Ideas please?

sudo apt purge thunderbird Reading package lists... Done Building dependency tree... Done Reading state information... Done Package 'thunderbird' is not installed, so not removed 0 to upgrade, 0 to newly install, 0 to remove and 3 not to upgrade.