Hi Marco, On 23.07.2010 12:04, Marco Gaiarin wrote: > Reading around on past years i've found hint to append to > %PROGRAMFILES%\Mozilla Firefox\greprefs\all.js file the two row, i > don't know i can create %ProgramFiles%\Mozilla > Firefox\defaults\pref\policies.js or %ProgramFiles%\Mozilla > Firefox\defaults\pref\local.js I would not prefer to append (and therefore modify) some existing files of Firefox. I always prefer plugin-mechanisms which add files without having to modify existing ones. Especially this usually simplifies migration if you don't have to re-append but just to insert some additional files. > Where i can get some info? Google point me to nothing... > Or it is a general feature, eg all files on %ProgramFiles%\Mozilla > Firefox\defaults\pref\ directory are loaded in turn? I think I initially found this information on mozillazine. Like this: <http://kb.mozillazine.org/Locking_preferences> > PS: a little corollary... why use defaults/prefs/local.js to load > another .js file, why not simply put all the settings on > defaults/prefs/local.js itself? I don't like modifying existing files. It complicates migration and might have side-effects. Firefox might change the contents of the included files or start to verify checksums or whatever... br, Rainer |