UnInstalling the Endpoint Policy Manager Application Settings Manager Firefox Functionality
The Firefox add-on that Netwrix Endpoint Policy Manager (formerly PolicyPak) uses is installed the first time the Firefox AppSet is used. The best (and only supported) way to uninstall the Firefox add-on is to uninstall the Endpoint Policy Manager client-side extension (CSE) from within "Add-Remove Programs."
CAUTION: Simply stopping the use of the AppSet (by deleting the entry or unlinking the Group Policy Object) isn't enough. The full CSE must be uninstalled to remove all of Endpoint Policy Manager's Firefox functionality.