Puffin users are recommended to abandon iOS and move to other platforms.
Some Facebook games, e.g., Pet City, do not work on Puffin for iOS anymore. The root of the issue is due to Apple blocking Puffin updates to protect its own Safari. Apple could not compete against Puffin honorably and decided to compete cowardly. Puffin releases new versions on Android, Windows and Linux regularly. Facebook games work well on those platforms. We recommend Puffin users to abandon iOS (since Apple betrayed its users first) and move to other platforms.