For Event Production, along with Chrome, Firefox is one of our supported browsers. However, a known bug in Firefox makes it fail event production.
For users affected by this bug, the Live Producer will find your camera and microphone, but then fail to connect to the SlideSync servers. The "Connecting" warning stays on and the "Start Webcast" button never appears.
This bug only affect Firefox version lowers than 71 (released in December 2019). Check your Firefox version in the "About Firefox" menu in the Settings.
The workaround for this bug is to set up the Firefox proxy configuration file manually. In order to do that, you'll need to know the location of the PAC file on your network. It looks something like this:
Your IT department can provide you with this information.
Once you know the location of the PAC file, you need to enter it in the Network Settings of Firefox.