Looking for the Preference setting for the FireFox button. What configuration file holds the setting for the FireFox Button, what is the Preference line and what are the settings for it? I would like to deploy with the Menu Bar on and the FireFox button set to off. For example is this setting found in the Prefs.JS file and what line/command holds its value? Example for what we're looking for “user_pref("toolkit.telemetry.prompted", 2);”

Thanks in advance for your assistance.