diff --git a/py/selenium/webdriver/firefox/webdriver.py b/py/selenium/webdriver/firefox/webdriver.py
index 1cd39f721b3be..23a7c94a0f642 100644
--- a/py/selenium/webdriver/firefox/webdriver.py
+++ b/py/selenium/webdriver/firefox/webdriver.py
@@ -23,13 +23,14 @@
 import shutil
 import socket
 import sys
+
 from .firefox_binary import FirefoxBinary
-from .service import Service
+from .remote_connection import FirefoxRemoteConnection
 from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
 from selenium.webdriver.firefox.extension_connection import ExtensionConnection
-from .remote_connection import FirefoxRemoteConnection
 from selenium.webdriver.firefox.firefox_profile import FirefoxProfile
 from selenium.webdriver.remote.webdriver import WebDriver as RemoteWebDriver
+from .service import Service
 
 
 class WebDriver(RemoteWebDriver):
@@ -38,8 +39,7 @@ class WebDriver(RemoteWebDriver):
     NATIVE_EVENTS_ALLOWED = sys.platform != "darwin"
 
     def __init__(self, firefox_profile=None, firefox_binary=None, timeout=30,
-                 capabilities=None, proxy=None, executable_path='wires'):
-
+                 capabilities=None, proxy=None, executable_path="wires"):
         self.binary = firefox_binary
         self.profile = firefox_profile