How can i decrept data base file created by firefox for cookie in Profile Folder. while i am trying to connect with it using PHP it shows me error message like.

How can i decrept data base file created by firefox for cookie in Profile Folder. while i am trying to connect with it using PHP it shows me error message like as follows... Warning: SQLite3::exec() [sqlite3.exec]: file is encrypted or is not a database . Now, i want to display all cookies set in firefox. how can i connect with this database file? Please help me... Thanks in Advance... :)