I reported this 4 months ago and got no useful reaction, and the issue is ongoing, and my last report is clearly dead. I only got one idiot saying "Your answer is in your screenshots". Answer? I didn't ask a question. I reported feedback to fix something. Ever since Facebook started infesting the chats with end-to-end encryption (random chats get "Messenger upgraded the security of this chat. Messages and calls are secured with end-to-end encryption" without my permission or asking if I want this), any encrypted chats have audio and video calls disabled. I note that I have ONE friend for whom it didn't do this, I can still do calls with her. If I receive a call, I get a pop-up saying that to receive this call I must download the Messenger app (no way) or a browser which supports it. If I check what browsers it thinks supports this, it only lists Chrome and Edge. As far as I know Edge is just Internet Explorer renamed, the biggest black hole in security, I've never touched it. Chrome ignores industry standards, so I don't use it. Making Firefox the best, top browser available. It's the only browser I wish to use. Mozilla needs to look into how to get Facebook to stop blacklisting Firefox like this. Note that this E2EE garbage has only been infecting things for less than a year, before that I was perfectly able to do any calls I wished in Facebook Messenger. Note that back when I made my previous report, Group Chats were immune, but trying again today making a group chat RIGHT AWAY it marked it as having E2EE applied, so that fix now no longer works. Can this somehow be brought to Mozilla's attention, to fix whatever Facebook is griping about so Firefox users can stop being blocked from making calls?