One day I accidentally stumbled across a keyboard shortcut in Mozilla that enables a blinking cursor on the page that you can move with the arrow keys and select text. It's just like a text editor, only you can't type stuff. I forgot what this feature is called. The first time you activate it, a window comes up that says what it is and how to turn it off. Well, somehow I've reactivated it and I can't remember how to turn it off. It's starting to get on my nerves. Does anyone know how to disable it?