I realize this may be trivial, but I like it when things work the way they're supposed to. The Google calendar favicon has a number in it that is supposed to be today's date. It is never correct. The calendar itself is correct, but not the favicon. See attached screenshot. Today is the 28th, which the calendar correctly says, but the favicon says '14.' I tried it in Chrome, and it works correctly. So, there may be something FF (78) or one of my add-ons that is blocking that information. How do I track it down and correct it?