Just about every browser seems to have a pop-up blocker... Safari, Opera, Firefox, Camino. But none of them actually seems to block all pop-ups. Most, yes, but not all. Does anyone know of a pop-up blocker that is actually 100% effective, either built-in to a browser or as an add-on? Why is it so difficult to create a browser that will absolutely refuse to open a new window unless I ask it to?