Too many passwords are quite difficult to remeber though if you do but still who wants to type the same user name / password every day so generally a good way is to ask Firefox to save the passwords. But what to do if you really need to know what password you save would you prefer going throught the long password recovery process by all websites or you need some help in there.

Well here is the catch nodoubt its easy to recover passwords but its unsafe as well so firstly. So lets how unsafe they can be. To see which passwords you have saved into Firefox simply go to :
Tools >> options >> security >> Show Password
There you will find the URL’s and usernames of all the sites who’s password you have saved in Firefox now to reveal the password simply click on “Show Passwords” and firefox will show you all the passwords. This is good way of recovering your passwords but very unsecure as well as any one using your computer can easily steal all your passwords and you can’t do anything thing about it. But there is a way..

To protect your passwords follow the same path go to :
Tools >> Options >> Security >>
and there you will see a check box asking Change Master Password check it true and a window will open asking you setup a password type your password click ok and close it now if you go back to password recovery location and once you click it to ask to show all passwords it will ask you for the Master Password.

source [firefox facts]