Problem
System diagnostic shows a package status corrupt warning.
Solution
Step 1
Try to fix automatically and get further details about the corrupted package:
root@host:~# dpkg --configure -a
root@host:~# dpkg --audit
The following packages are in a mess due to serious problems during
installation. They must be reinstalled for them (and any packages
that depend on them) to function properly:
firefox-esr Mozilla Firefox web browser - Extended Support Release (E
Step 2
Remove the corrupted package and re-install it by
apt remove firefox-esr
apt install firefox-esr
Step 3
If still not fixed and the package is unneeded, simply remove it by
apt remove firefox-esr