Firefox says "Your browser is being managed by your organisation."

OK In my post above I am on UM22.04 also. That aside leads to question do you have Firefox now as snap?
I do not get that message but I am using a tar package which I changed to with the help of this post:

https://ubuntu-mate.community/t/firefox-installation-guide-non-snap/25299/22

When I upgraded from UM20.04 which had snapd removed, had to again remove it due to reinstalling itself as referenced in the post. Also have removed flat0ak for similar loss of control.