What version of this package are you using?

**What operating system, Node.js, and npm version?**Linux

**What happened?it says Firefox, Brave and MS Edge is unsupported

What did you expect to happen? According to https://www.wikiwand.com/en/WebRTC, Brave, Firefox and MS Edge is webRTC compliant. But, it does not worked

Are you willing to submit a pull request to fix this bug?