Hmm, what are plist keys?

Your home page and preferred startup setting (home page, blank page, session restore) are stored in the prefs.js file in your currently active Firefox profile. Firefox may check two other locations for overrides: a user.js file and an autoconfig file.

Are you trying to propagate settings across a bunch of networked computers?

A plist is a preference file on Macs. The keys are different variables that can be set. I'm using them to remotely manage safari and chrome, I was hoping to use the same method to manage firefox. I've been searching the web for them with no luck. Firefox does use a plist file (org.mozilla.firefox) so I'm assuming there are keys aot there. Thanks