CLicking the share button in the referral advertisement spins authenticating to Facebook and returns error 104. This is ubuntu 14.04 with steam.
I have the same problem on debian steam.
I was advised to be logged in with a browser. But still got same error even with all available browsers logged in to facebook.
Ok, so after the last update when I clicked the share button a browser window opened, asked for me to login to facebook, forwarded to an available port on localhost (don’t remember the port number) then failed as usual.
For me the entire game freezes. I had to xkill Star conflict, and the station sounds, explosions and ships flying by, kept playing.