Ghostery
I upgraded to Safari 12.0 and now Ghostery isn't working. When I try to open it, I get a window that says to go to Safari extensions. Once there, it says that Ghostery has been installed, and indeed it's in my downloads. But it won't open, I just get that window again. How can I get Ghostery to be active again? I miss it!!
iMac, iOS 10.12.6