This is very cool.
OK, Microsoft – tell me how to do these exact same things in IE7!
Firefox’s extensions are useful, but often they slow-down web browsing and increase the amount of RAM used by the browser. A simple way to run Firefox with no extension enabled is to use the safe mode.
Before trying this, you can change a setting that saves the sites loaded when you close Firefox (Tools/Options/General/When Firefox opens… show my windows and tabs from last time).
How to run Firefox in safe mode? Close the browser, go to Start, click on Run and type:
In Linux and Mac, you should open the Terminal and type: