Not working anymore on Firefox version 108.0.1. Did all the trouble-shooting that I found online. Disabled & enabled the extension, checked all settings, restarted browser, restarted workstation, logged out of all other tabs in also on all other browsers incl. the Thunderbird google calendar view, where it never worked, cleaned browser cache, ran a bunch of other cleanup software, but it keeps working on Chrome browser and just not on Firefox anymore, since the latest Firefox update today. Most crucial function for my business event planning hence if it was actually working flawlessly, I'd give it 5 stars!