Up until this week, I was able to share my microphone in Firefox to facilitate Google Voice calls via Gmail.
I run Kubuntu 19.10 and Firefox 73. My question at AskUbuntu (addressing the client-side of this matter), isn't seeming to get much response.
I'm hoping someone here might know of a server-side reason for the fact that Firefox doesn't seem to realize that mic-sharing is necessary to facility a Google Voice based phone call.
This all worked fine until Monday. Even with a freshly installed Firefox (with a freshly generated profile), Firefox seems to be oblivious to the fact that it must share the microphone to facilitate calls.
I'm thinking that maybe Google has updated gmail and google voice this week to some modern standard that Firefox hasn't yet implemented. Before Monday, each time I'd make a call, Firefox would prompt me to share the microphone.
I know of nothing that was changed client-side. Are any of you aware of something that changed server-side this week in Gmail, Google Voice, and Google Hangouts?