Lock Firefox 6 Prefs (Also versions 3, 4, & 5)

“The first thing to understand is how Firefox preferences work.
In your browser, type the address “about:config” and press enter.
After agreeing to their warning message, you should see a whole
list of configuration options listed with their current settings.
These settings are for your user only, but it should help you get
the notion for just how many settings are possible to set.

If you’re comfortable with the command line, the steps we’re
going to go over are quicker and easier with a terminal window, but
we’re going to show the GUI way so as not to exclude anyone. (If
you are comfortable on the command line, you’ll know how to follow
the directions below without any problems)

Complete Story