> Further, users who have tried changing their user-agent—the identification string, sent by browsers, that tells Web servers what version of which browser they

> Further, users who have tried changing their user-agent—the identification string, sent by browsers, that tells Web servers what version of which browser they are—have reported that much of the app works in both Safari and Firefox, with reports that even voice and video calls work in Firefox. It's not clear that everything works, and WebRTC is arguably persnickety enough that Microsoft would have to explicitly test and perhaps tweak its code to work in Firefox or Safari. But ultimately, none of this appears to be a fundamental tech issue. Goes to show that companies will cut corners in silly ways whenever possible. Unless MS is called out on this repeatedly, it won't change. The noise needs to be louder on supporting Firefox (and other non-Chrome browsers). Otherwise everybody could lose.