This solution is not mine, but its tested and works. Great thanks to my buddy @ four elements Hope its usefull for somebody over here. ===============================mainlocation =============================== %userprofile%\Application data\Mozilla\Profiles\%profile%\%salted%\... %userprofile% = C:\Documents and settings\%username% %profile% = "default" %salted% = "12345678.slt" (8 cijfers/letters) folders - Cache - Mail - ImapMail files - prefs.js - abook.mab - bookmarks.html ===============================Methode for making standard salted path =============================== rename"12345678.slt" to "unsalted.slt" Start mozilla Remove profiel "default" New profiel "default" Regiosettings "NL" This wil be linked to the slt-folder, but ONLY if exact 8 karakters. But cache still pointing to the old location ( salted ) ===============================Methode or making standard config =============================== Configuration is in prefs.js This can be overrulled by optional file user.js You can put the unsalted.slt in a loginscript for example Example: * user_pref("browser.cache.disk.parent_directory", "t:\\temp"); (watch the dubble backslashes) the path is not allowed to contain eviroment variable ( %username% ) ===============================Cache from roaming profile (policy) =============================== Method to let the cache in the profile dire Solution cach not on server, but same for all users. ExcludeProfileDirs="Application data\Mozilla\Profile\default\unsalted.slt\Cache" Path is relative to %userprofile% and may not contain wildcards disadvantage: - cache-path must be adjusted bij script, because there is still a salted-path pointer - while this path is absolut, this is still for every user different. ( own %userprofile% ) - better to use the Temp drive. ===============================Cache from roaming profile, use of X: =============================== Method to set cache to T: ( Temp) see above Putting mozilla data to X: ( Home Drive ) First move "default" to X:\.Mozilla thruough mozilla profile manager, creat new profile en use the existing profile on X: Also move cache to T:\temp ( see above ) Disadvantagel: - bigger load on server and network - all imap-mail is done "local" in cache stored, so now its on X: - when server is down, your not able to retreave old mail, and your not able to make a new mail ===============================Full appdata to X: (policy) =============================== moving %userprofile%\Application data to X:\.profile\Application data Advantage - all user settings are on X:, so logon goes faster. - when creating backup you have ALL user data. Nadeel: - same as above - other apps also doen't work which uses %application data%. ===============================Mozilla config =============================== Prefs.js look/adjust through http://about:config shows the vallues of the user.js Changes only in prefs.js So the user kan only change prefs.js and User.js can be used as a policy example: * user_pref("browser.startup.homepage", "http://server/home.html <http://server/home.htmle> ");