Firefox Will Show Your Hidden Passwords
Everyone has the habit of choosing to save user name and passwords for various websites while Internet surfing. Although in Internet Explorer some particular password cannot be read once saved (although you can delete it,) firefox has the option to show your passwords in case you forget them
In tool menu click options and then select security as show in above window. Click the Show Passwords button. This will show a small window which will show the passwords with respect to various username and website when you once again click the Show Passwords button.
Remember to do this when no one is around.