how to delete the saved email address and password on facebook using firefox?

[tatzi]

because when I open facebook who has stated that "saved password and email add" I pressed yes so when i open facebook i will press the log in. but now i use google chrome and with my brother using mozilla firefox . I wanted to remove my email add and password so he could not open my acct..

[Matteo Chirco]

Remove all cookies and cache

[matrix]

You can use this FREE tool FirePasswordViewer to find any saved passwords by Firefox

http://securityxploded.com/firepasswordviewer.php

To remove go to Firefox
Tools -> Options -> Security - Saved Passwords

Search for facebook and delete any of the saved passwords.