I have a computer running Ubuntu Server with a window manager that is supposed to open Firefox in full-screen when it boots up. (It's a touchscreen kiosk). Recently, I installed ad-block, not realizing it would mess everything up. It used to start up in full-screen every time. Now it never boots in full-screen, even after removing ad-block. Does anyone know how to fix this without any plugins or add-ons? I have tried putting it in full-screen and closing the window. It still does not start full-screen.