Paul (Nickname Killerx) did a great job with developing the GPO add-on for Firefox called GPOFirefox. There are a couple of Extensions out there, that handle the interface between Firefox and the Registry. That’s in case all you need to do, if you add some of these admx files around for managing Firefox through GPO. Since Paul stopped the development of the Gpofirefox add-on with version 5 of Firefox there are some things, that this add-on can’t handle. First of all, there are some differences between this add-on and other add-ons like for example the one of Frontmotion, which isn’t really a add-on. It’s kind of build into the so called Community Edition of Frontmotion Firefox. The Frontmotion add-on lacks at some point, when you need to change more settings than just the defaults like browser startup homepage, or proxy settings. If you only need these few defaults, I would recommend to use Frontmotions version, instead of any other, because Frontmotion comes with a customized admx file for all default settings in Firefox. The point, where this is not enough is when you want to change settings for example of an extension. Because Frontmotions admx file doesn’t support custom settings,…