Firefox can save usernames and passwords that you use to access online services, such as banking and email websites. If you share a computer with anyone, it is recommended that you use a master password.
After you have defined a master password, you will be prompted to enter it once Firefox needs to access your stored passwords.
By default, Firefox does not use master passwords to protect stored credentials. To define a master password:
If you don't need a master password, you can remove it at any time:
You can also change your master password at any time:
Based on information from Master password (mozillaZine KB)
The basic changes to be done are:
In addition, based on this thread, a section on using an OS user account and a screen saver that automatically locks your account within minutes must be added.
With this, the article scope would become more generic and it should be renamed in "How do I prevent people from accessing my passwords and other private data?".
I don't agree with renaming and changing the scope of the article. I made a new revision to update the article with Windows 7 screenshots (using the ones in the pending revision by scoobidiver) and a few other minor edits.
I approved my Jan 17th revision, partially based on the Sept 20 edits by scoobidiver but without OS sections that changed the scope of the article.
I agree that sections on user accounts and locking your computer is too much for this article. However I've been thinking about and talking to the person working on SUMO taxonomy about a way to relate groups of articles by tasks. We could certainly have articles about OS user accounts and screensaver locks and then combine them in some way with articles like this and others (choosing secure passwords, etc) into a whole tutorial/course on security.
Master Password is not very useful because I was still able to access my bookmark and all other websites just by clicking cancel when prompt to enter the password, so what is the use of it