Error Firefox Icon missing

After a desktop upgrade to 24.04.1 the firefox icons in the task bar disappeared. Here's what was done to get them back (note: there are/were lots and lots of pages with advice on how to fix this, none of which worked).

Essentially the firefox installation here is the standard Kubuntu SNAP install. After the upgrade the icons disappeared and didn't show up anymore in the task bar's properties for the Firefox button.

Ultimately after trying lots and lots of things it was decided to simply copy the icons out of the Snap path for firefox and put the "chrome" in an accessible place for the task bar.

mkdir ~/.mozilla/firefox/firefox-icons
cp /snap/firefox/4955/usr/lib/firefox/browser/chrome /home/me/.mozilla/firefox/firefox-icons

Once the icon file and directories are in place simply open the task manager tool bar button settings and browse to the newly copied icon directory. Here the 128 icon was selected and everything was fixed.