I consider the Firefox Master Password a must-set security feature of the web browser if you are using Firefox's built-in password manager to save usernames and passwords.
While that is very comfortable to do, as you do not need to memorize passwords anymore to log in to websites and do not need to type the data manually anymore as well, it is also a security risk if you do not set a master password as anyone with access to your computer may access the password database or log in to sites.
Anyone with access to your computer is able to go into Alt-Key -> Tools > Options and click on Show Passwords under the Security tab.This displays a list of all authentication information -- that is username, password and the website they are associated with -- that you have saved in Firefox previously.
A click on the button 'Show passwords' in that new menu displays all corresponding passwords for all sites. Gmail, Blogs, Myspace, nothing is really safe. By taking a look at your passwords someone could also analyze patterns. If you were using the same passwords on all sites it is fairly easy to assume that your pop3 email account would most likely use the same password as well.
To set a new Master Password in Firefox do the following:
Note: It is highly recommended to select a safe password. Use the password quality meter as guidance. It is also important to note that you will lose access to all information stored in the password database of the browser if you forget the Master Password.
You will be asked to enter the Master Password once per session from that moment on, usually when the browser starts. If you close Firefox and reopen it again, you will be asked again for it.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.