About Webroot Pop Up Washer, Stop ads like mouse-over, delayed and mass attack popups, while allowing user-initiated and navigational pop-up windows you need. Pop-Up Washer stops popups at the Internet Explorer engine before theyappear, preventing screen flickers common to other pop-up blockers. With one-click activation, youhave the option to log blocked popups. Customize which sound you want to hear when Pop-Up Washer blocks an ad.