@classmethod
    def connect_and_quit(self):
        """Connects to an running browser and quit immediately."""
        self._request(_URL % '%s/extensions/firefox/quit')
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/selenium/webdriver/firefox/extension_connection.py/ExtensionConnection.connect_and_quit/swapped operands of `%`