How to remove all the firefox (and other) cruft in /snap etc.?

[Grizzlly]

Friday, December 22, 2023  at 13:54, Chris Green wrote:
Re: How to remove all the firefox ( (at least in part)

>Finally 'snap remove --purge snapd' (yes, it can remove itself!) after
>which 'apt purge snapd' leaves things reasonably cleaned up.  :-)  It
>even removes the /snap directory.

Real Final step (after cleaning up various snap[ish] dirs) 

Preventing Snap Installation Through the apt Command

$ sudo cat <<EOF | sudo tee /etc/apt/preferences.d/nosnap.pref
Package: snapd
Pin: release a=*
Pin-Priority: -10
EOF