Web Browser Multiplayer

Hey, I just created a game and I want to add multiplayer too it. I will create the game so it works in a web browser... but I gotta ask one question before.

-is there anything different when I try add multiplayer to a game that will be in a web browser than in pc format or is it pretty much the same?

( BeGone is an good example how I want my game to be ( Multiplayer )

From my experience, no, it's the same. But I've only done some pretty basic stuff.