You all must be familiar to the About:Config trick in Firefox 2.But in Firefox 3 it has a slightly different method to perform that trick.So whats the difference?Here it is for you.
1. Start Firefox.
2. Type about:config into the address bar and press Enter. Something like this will appear.Click I’ll be careful, I promise button:
Here comes our desired about:config Window
3. Now we have to modify or create new values as you used to do it in Firefox 2