as opposed to just enabling allow/disallow? This seems really shady, and was the final reason I uninstalled it completely. The first reason was that an update overwrote my preferences for the 4th time.
name of the extension(s)? Firefox dont overwrite user settings if firefox do not assume they are important. removal for system extensions = not possible, removal for external extensions (3rd-party on system) = not possible -> uninstall 3rd-party software.