What does "pop-up window" mean?

Pop-ups are graphical interfaces that appear suddenly over primary website content without your consent, interrupting your browsing experience with spammy commercial ads or invasive notifications.

Intelligent perimeter filtering

Not all pop-ups are the same; some are legitimate, while others are purely promotional. AdBlock Network distinguishes between the two. Our firewall performs read-only asynchronous requests to multiple independent endpoints to keep your local filter database current, blocking only those pop-up scripts classified as unwanted via the Address and Advanced layers.