Firefox profiles

Mozilla Firefox stores all personal information of the user, such as bookmarks, cookies, passwords, expansions, magazine of visitings, themes, a cache and adjustments in a unique profile. At first start Firefox the profile by default is created, additional profiles can be created by Profile manager. The adjustments forming a profile are stored in a special folder on your computer, named Profile folder.

The Profile folder is located:

Windows 95/98/ME C:\Windows\Application Data\Mozilla\Firefox\Profiles\\
or C:\Windows\Profiles\\Application Data\Mozilla\Firefox\Profiles\\

Windows NT 4.x C:\Winnt\Profiles\\Application Data\Mozilla\Firefox\Profiles\\

Windows 2000/XP C:\Documents and Settings\\Application Data\Mozilla\Firefox\Profiles\\ или %APPDATA%\Mozilla\Firefox\Profiles\\

Windows Vista C:\Users\AppData\Roaming\Mozilla\Firefox\Profiles\\

Unix ~/.mozilla/firefox//

Mac OS X ~/Library/Mozilla/Firefox/Profiles// или ~/Library/Application Support/Firefox/Profiles//

Information from wiki.mozilla-russia.org