Someone posted this and it worked for me. I am re-posting as many people are still having the same problem.
Hello! Some changes made in the latest release of Firefox, version 80.0, are causing problems when on a doxy.me call.
There has been a temporary workaround identified:
- You can open your Firefox browser and search “about:config” in the url.
- Select Accept the Risk and Continue button on page
- From there you can find and update by typing in “media.peerconnection.video.use_rtx” then click the arrow toggle to switch the setting to false to resolve this issue.