I just tried compiz again, and it doesn't freeze anymore, but instead it does a epilepsy inducing flickering when window cycling hits the respective fullscreen application (it's not firefox specific, a fullscreen gnome-terminal has the same effect)
I just tried compiz again, and it doesn't freeze anymore, but instead it does a epilepsy inducing flickering when window cycling hits the respective fullscreen application (it's not firefox specific, a fullscreen gnome-terminal has the same effect)