I hate to jump to conclusions too soon but late this evening I got an "error message" while in Edge saying: "Something went wrong with your extensions, so we had to reinstall them. You'll need to turn them on again." I then got another message from the top right of my screen which said: "You have a new extension. To start using AdblockPlus, turn it on. This extension is allowed to: * See the websites that you visit; *Read and change content on websites that you visit; *Read and change anything that you send or receive from websites; *Store personal browsing data on your devices. Below this were two buttons: "Turn it on" and "Keep it off". I opted for "Turn it on" and since then the AdblockPlus function seems to have been resumed. Hallelujah! I hope this is the beginning of a resolution to a problem seemingly experienced by so many people over the past couple of days.