Live streaming to Facebook with MB Studio is super easy. Go to your Facebook profile and open a new post with live video
Choose "Go Live"
Choose the broadcast with a streaming software and activate the "Permanent streaming key" option and then click copy to the right of the streaming key
Now open the encoder configuration in MB STUDIO and set it to RTMP Video codec Video h264 2048K or higher and in the server box write:
rtmps://live-api-s.facebook.com:443/rtmp/ and on the right, paste the Facebook streaming key
the result will be something like this
Now you can activate the encoder and you should be live on facebook
Please note that Facebook will log you out if you transmit copyrighted audio or video