Hallo, I 'm running: Firefox 104.0 64-bit (dark mode) on: Win10, 64-bit (20H2 up to date) with the following addons: - Adblock Plus - uBlock Origing - Concent Blocker - Video DownloadHelper I have a webpage, where I have just added the free chat of "Messenger" provided by Facebook. Problem is that It is not visible! I checked with Opera v.89.0.4447.83 and it worked! The round icon was visible. Can anyone please help?? Thank you in advance!