Popper Stopper Pro
From the original founder of "Poper Blocker" - New defenses & algorithms that were built from the ground-up. No more popping windows! When a popping window (popup or a popunder) is recognized, the plugin will block it and a notification will be shown. You'll have the control whether to keep blocking or to whitelist all the popping windows from that site, using the “Allow Always” link. The extension works well with other ad-blocking extensions, like adblocker, and can be used as a complementary addition for a better browsing experience. Your privacy is our top priority. We do not send any data to any server. Period.