Run In Background doesn't work.

Unity Engine
1

Hello everybody, I just updated my unity to version 5.1.1f1 and it seems that the option Run In Background doesn’t work. Anybody has this issue? Is it a bug on this version? Thanks a lot.

2

Same issue - using 5.1.1p3.

3

Do you still have this problem ?
I am on 5.2.1.f1

4

More informations:

I am running my game with Firefox + WebGL at this address:
http://adversator.sablio.com/

when the game runs you can see that everything is fine, but switch from the tab for a few seconds you will see that the characters didnt move.
The strange thing is : the music is still playing in background and the timer is still working.