Killer Lite is a FREE professional and intelligent popup
killer. Running in the system tray Hitware Popup Killer
Lite quietly eliminates all unwanted pop-up and
pop-under ads even before they appear and preventing
pop-up and pop-under ads from stealing bandwidth or
locking up your browser with multiple windows opening.
You can choose to be notified via animated tray icon
and/ or sound whenever a popup window is closed.