After the latest update Google Chrome asks for Flash permissions each time you start the game.
Solution:
Open "chrome://flags/#enable-ephemeral-flash-permission" (enter the URL between the "" in your Chrome browser)
Set the option "Enable Ephemeral Flash Permissions" to "disabled".
Solution:
Open "chrome://flags/#enable-ephemeral-flash-permission" (enter the URL between the "" in your Chrome browser)
Set the option "Enable Ephemeral Flash Permissions" to "disabled".
