Hello Can you please help me find an adblocker for old Firefox 78.15.0esr. I have looked everywhere. I have to stay on an old OSX (Mac 10.11) and use Firefox 78.15.0esr (for various reasons I cannot upgrade). I had an adblocker that worked brilliantly, but a few weeks ago it was removed (not by me), so the Ads came back! Recent attempts to download ad blocker as before were not successful. ?incompatibility I think. Many many thanks Jane