Streaming directly Facebook Live is not supported yet.
We're working on a solution and hope to have it available soon!
A simple workaround that our users like to use can be achieved with a software called ManyCam.
ManyCam is a streaming software that can connect both with Loola and with Facebook at the same time.
Download ManyCam here:
Instruction on connecting ManyCam with Loola can be found here:
(Please make sure to also connect Facebook after setting up RTMP)