How To Locate The Firefox Profile Folder

Being able to locate your Firefox profile folder can be a bit tricky, yet it's very useful to know it's whereabouts. Here are the locations of your Firefox profile folder on different OS.

Windows 95 (without Desktop Update)
C:/Windows/Mozilla

Windows 95 (with Desktop Update)/98/Me
C:/Windows/Application Data/Mozilla

C:/Windows/Profiles/<Windows login/user name>/Application Data/Mozilla

Windows NT 4.x
C:/Winnt/Profiles/<Windows login/user name>/Application Data/Mozilla

Windows 2000 and XP
C:/Documents and Settings/<Windows login/user name>/Application Data/Mozilla/Firefox/Profiles

Windows Vista
C:/Users/<Windows login/user name>/AppData/Roaming/Mozilla

Unix
~/.mozilla/

Mac OS X
~/Library/Mozilla/

~/Library/Application Support/

You can also consult this Mozilla Knowledgebase article for further details.