Add Safe Search/Identity Safe to another Firefox Profile win10

I am using Firefox 47.0 with multiple profiles on a computer with win10.  Chat Support added Safe Search to one profile, and I would like to add it to other profiles on this and other win 10 computers. After Safe Search was added Tools>Add-ons lists Norton Identity Safe 2016.7.062, so I assume I need to add it to other profiles.  How do I proceed?

I am assuming Identity Safe is the current name for safe search.  Is this correct?

A little off-topic, but how would I add the Norton Toolbar?