This extension redirects the default request to the Roll20 Virtual Tabletop, adding params to ensure you join as a Player, rather than a GM, when entering a game you have GM permissions for. Then, you don't risk accidentally seeing the GM's notes when you join a game where you rotate between being a GM and a player!
If you want to switch to GM mode, you can do so once you've entered the game, and the extension will not stop you.
