--- a/testing/marionette/client/marionette/client.py
+++ b/testing/marionette/client/marionette/client.py
@@ -52,17 +52,17 @@ class MarionetteClient(object):
             response += self._recv_n_bytes(int(length) + 1 + len(length) - 10)
             return json.loads(response)
         else:
             raise InvalidResponseException("Could not successfully complete " \
                                            "transport of message to Gecko, "
                                            "socket closed?",
                                            status=ErrorCodes.INVALID_RESPONSE)
 
-    def connect(self, timeout=180.0):
+    def connect(self, timeout=240.0):
         """ Connect to the server and process the hello message we expect
             to receive in response.
         """
         self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
         self.sock.settimeout(timeout)
         try:
             self.sock.connect((self.addr, self.port))
         except: