I use roll20 across 2-3 machines, each with 2 operating systems and 2 browsers each... (firefox for daily operations, and chrome for actual playing, cause of the incompatibilities with firefox) - I am sick of having to enter my password over and over, because if I start a user session on another one, the others drop it. I have a 16 character, small, big, numbers, special chars, randomly generated password, it's a total PITA having to enter/copy it over and over :-(. I know that keeping multiple sessionid cookies is a security risk for the user, but it's a very small one, and the inconvenience of having to log in over and over totally outweighs it. Please allow to have more sessions open at once, and not expiring for a week or more. Or maybe make a dedicated "client" application using nodewebkit, so I could just use only 1 browser (or fix the problems with low performance and audio/video on firefox).