Firefox changes WebRTC API in the part of getUserMedia object.

Now you should use navigator.mediaDevices.getUserMedia instead of navigator.mozGetUserMedia  for Firefox browser.

Regarding Web Call Server JavaScript API, we have added a fix:

1. Web Call Server 4 and 5

wcs_api: 896.1719 / Git commit 25ac2

2. Web Call Server 3

wcs_video: 519 / Git commit f90da

See also getUserMedia API on Mozilla website.


Learn more about Web Call Server 5 – streaming video and web telephony server.