Chrome Favorites Location:
Users\Name_OF_User\AppData\Local\Google\Chrome\User Data\Default
Internet Explorer Location:
C:\Users(username)\Favorites\
Firefox Location:
C:\Users\<Windows login/user name>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile folder>
Safari Location:
C:\Documents and Settings\YourUsername\Application Data\Apple Computer\Safari\Bookmarks.plist