Have you see the "web page dialog" popup with the content from www.cnn.com?
If you installed Zero Popup 2.0, it should be blocked.
But the following examples should be the safe Popups.
When you click them, they should not be blocked. Otherwise, interfere your normal browsing.
Me too. You should not block me. Otherwise, interfere normal browsing.
You can test with other popup killers. How do they do?