Questions/Answers: Compatability of Identity Safe

I have a couple of questions/concerns.

First, since Norton 360/Norton One is being retired I would like to know if I will lose my Identity Safe when I have to upgrade.

Next, I currently use Internet Explorer as my browser. I am considering changing to Firefox. I would like to know if the new Norton supports Firefox, and if I still have my Identity Safe will it work with Firefox?

If anyone can shed some light on this for me it would be most appreciated.