Mozilla Help: What is pop-up blocking, and how do I use it?

[an error occurred while processing this directive]

Mozilla Browser FAQ

Last updated on November 3, 2004.

What is pop-up blocking, and how do I use it?

Pop-up windows, or popups, are windows that appear automatically and without your permission. They vary in size, but usually don't cover the whole screen. Some popups open on top of the current browser window, thus popping up, while others appear underneath the browser (popunders). Mozilla allows you to control both popups and popunders through the Popup Windows preferences panel. Using this, you can set Mozilla to allow or disallow popups, or even set permissions on specific sites. To use the pop-up manager, go to Tools -> Popup Manager.