don't seem to work on Firefox(66.0.5)
They work here (67.0, just released).
Dude, nice! I had the same problem but it was fixed in FireFox v67.0!
I also couldn't resize the board but that bug is fixed as well in FireFox 67.0.
I'm using lichess in android app and in mobile browser for analysing Chess openings.. I wanted to know stock fish analysis runs in local browser or from remote server.. If stock fish engine runs on my mobile then my mobile battery life will be reduced. Can someone answer this.
My understanding is that it all runs using local resources. The only time it will use server CPU power is when you submit a request for computer analysis of a completed game. That gets send to a server to process and sends the results back to you.