I had my doubts but:
https://supple.com.au/tools/facebook-messenger-web...
This link will create a msger widget, which if you are signed into messenger.com will import and pop up your online user list anywhere you put the code.
That means you get to talk to people on your facebook/messenger with the stickers and the emotes and the video call and everything. It works on socibd too ;)
This is a better hack than skysa to get video chat on a bar or widget in the corner.