Safe Web does not let me use Facebook on my computer! The forums already have reports of similar problems, here's my addition: made a clean Windows setup, before installing Norton everything worked OK. After installing Norton the Facebook works terribly bad in all browsers and Facebook app. No notifications, few posts on the news feed, page refresh does not work, etc. In Chrome when Safe Web extension is enabled, it also shows Facebook page in the dark and loops indefinitely. I can only occasionally work with Facebook normally, and only on Chrome, and this is quite random: may work OK in one session then won't work in the next one. So now I have to either give up on Norton or Facebook. :/