State of knowledge

April 2021


Firefox restriction

The Mozilla Firefox browser does not allow the audio output device to be changed. For this reason, the drop-down menu in the device selection before joining a meeting is not available. Only the test sound can be played.

Therefore, there is no need to change the output device during a meeting.


Firefox respects the Windows default playback device for audio output. You can change this via the speaker icon in the Windows taskbar.