Close Popup - Version 4.0 Close Popup will detect and close those annoying popup windows from any web site! It runs as a tray icon, which you can hide if you dislike clutter in your tray. Close Popup detects when Netscape, or Internet Explorer are opened and starts looking for popups to close, when your browser closes, it stops looking, you can also manually turn off the searching!! New in Version 4.0: you can edit the list of popups to close!