Who on wilders uses IE? For the OP ,if during your browser sessions with siteadvisor you wanted to enter many sites that Siteadvisor marked as Dangerous,than a program like this might be useful to you. I use it a while ago but except for warez sites and screensaver,sites, i did not seen Red Rating,yelow on a few sites for spam emails.And of course some green sites got hacked in the meantime and the addon failed to keep up with the changes. I think that these products are waste of bandwith,not to mention privacy concernes. I've seen some good real time detections from finjan and linkscanner, and like emperordarius wrote i'll go with one of these .