--- a/testing/firefox-ui/tests/firefox_ui_tests/functional/security/test_dv_certificate.py
+++ b/testing/firefox-ui/tests/firefox_ui_tests/functional/security/test_dv_certificate.py
@@ -1,17 +1,15 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 from marionette_driver import Wait
-
 from firefox_puppeteer.testcases import FirefoxTestCase
 
-
 class TestDVCertificate(FirefoxTestCase):
 
     def setUp(self):
         FirefoxTestCase.setUp(self)
 
         self.locationbar = self.browser.navbar.locationbar
         self.identity_popup = self.browser.navbar.locationbar.identity_popup