RecordRTC is WebRTC JavaScript library for audio/video as well as screen activity recording. It supports Chrome, Firefox, Opera, Android, and Microsoft Edge. Platforms: Linux, Mac and Windows.
Select window "Entire screen" or other from the browser and press "Allow".
Select audio device from the browser dialog box and press "Allow".
Recording status is inactive. No video is created.
When the same steps are followed using Chrome or Edge, the recording works.
Screen recording without audioworks in Firefox as well as in other browsers.
Demo:
When the same steps are followed using Chrome or Edge, the recording works. Screen recording without audio works in Firefox as well as in other browsers.