I am running the latest version of Edge. If I install the Norton Safe Web extension from the Microsoft App Store, it simply does not work properly. The green check marks and annotations do not appear as they once did. If I try to find the version in the Chrome App Store, it is simply not listed! I have also tried to install the extension in Firefox but got the same results. I once read that there is an unofficial link to a version that works in the Chrome App Store, but that makes no sense to me.
I cannot believe this extension is only intended to work with Chrome, and I'm not even sure if it does. C'mon Norton! Either make a version that works in ALL major browsers or at least clearly notify users of the situation.