diff --git a/testing/firefox-ui/tests/functional/safebrowsing/test_notification.py b/testing/firefox-ui/tests/functional/safebrowsing/test_notification.py
index 7619f4b863a7..6c24ae5025ea 100644
--- a/testing/firefox-ui/tests/functional/safebrowsing/test_notification.py
+++ b/testing/firefox-ui/tests/functional/safebrowsing/test_notification.py
@@ -75,9 +75,6 @@ class TestSafeBrowsingNotificationBar(WindowManagerMixin, MarionetteTestCase):
         with self.marionette.using_context("chrome"):
             self.marionette.execute_script(
                 """
-              const { Services } = ChromeUtils.import(
-                "resource://gre/modules/Services.jsm"
-              );
               let uri = Services.io.newURI(arguments[0], null, null);
               let principal = Services.scriptSecurityManager.createContentPrincipal(uri, {});
               Services.perms.removeFromPrincipal(principal, arguments[1]);
diff --git a/testing/firefox-ui/tests/functional/safebrowsing/test_warning_pages.py b/testing/firefox-ui/tests/functional/safebrowsing/test_warning_pages.py
index a3f0f6359039..22893c26b162 100644
--- a/testing/firefox-ui/tests/functional/safebrowsing/test_warning_pages.py
+++ b/testing/firefox-ui/tests/functional/safebrowsing/test_warning_pages.py
@@ -78,9 +78,6 @@ class TestSafeBrowsingWarningPages(WindowManagerMixin, MarionetteTestCase):
         with self.marionette.using_context("chrome"):
             self.marionette.execute_script(
                 """
-              const { Services } = ChromeUtils.import(
-                "resource://gre/modules/Services.jsm"
-              );
               let uri = Services.io.newURI(arguments[0], null, null);
               let principal = Services.scriptSecurityManager.createContentPrincipal(uri, {});
               Services.perms.removeFromPrincipal(principal, arguments[1]);
@@ -101,9 +98,6 @@ class TestSafeBrowsingWarningPages(WindowManagerMixin, MarionetteTestCase):
         with self.marionette.using_context("chrome"):
             url = self.marionette.execute_script(
                 """
-              const { Services } = ChromeUtils.import(
-                "resource://gre/modules/Services.jsm"
-              );
               return Services.urlFormatter.formatURLPref("app.support.baseURL")
                                                          + "phishing-malware";
             """
diff --git a/testing/marionette/harness/marionette_harness/runner/mixins/window_manager.py b/testing/marionette/harness/marionette_harness/runner/mixins/window_manager.py
index 7bfdfead7937..c3bb6e3e7a8d 100644
--- a/testing/marionette/harness/marionette_harness/runner/mixins/window_manager.py
+++ b/testing/marionette/harness/marionette_harness/runner/mixins/window_manager.py
@@ -96,9 +96,6 @@ class WindowManagerMixin(object):
             with self.marionette.using_context("chrome"):
                 return self.marionette.execute_script(
                     """
-                  const { Services } = ChromeUtils.import(
-                    "resource://gre/modules/Services.jsm"
-                  );
                   const { windowManager } = ChromeUtils.import(
                     "chrome://remote/content/shared/WindowManager.jsm"
                   );
diff --git a/testing/marionette/harness/marionette_harness/tests/unit/test_modal_dialogs.py b/testing/marionette/harness/marionette_harness/tests/unit/test_modal_dialogs.py
index ccf58252937a..7cb6955abcfa 100644
--- a/testing/marionette/harness/marionette_harness/tests/unit/test_modal_dialogs.py
+++ b/testing/marionette/harness/marionette_harness/tests/unit/test_modal_dialogs.py
@@ -55,8 +55,6 @@ class TestModalDialogs(WindowManagerMixin, MarionetteTestCase):
         with self.marionette.using_context("chrome"):
             self.marionette.execute_script(
                 """
-                const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
-
                 const [ modalType, browsingContextId, delay ] = arguments;
 
                 const modalTypes = {
diff --git a/testing/marionette/harness/marionette_harness/tests/unit/test_navigation.py b/testing/marionette/harness/marionette_harness/tests/unit/test_navigation.py
index 1d0377dc7fa4..7ccaf2b80308 100644
--- a/testing/marionette/harness/marionette_harness/tests/unit/test_navigation.py
+++ b/testing/marionette/harness/marionette_harness/tests/unit/test_navigation.py
@@ -85,9 +85,6 @@ class BaseNavigationTestCase(WindowManagerMixin, MarionetteTestCase):
               let win = null;
 
               if (AppConstants.MOZ_APP_NAME == "fennec") {
-                const { Services } = ChromeUtils.import(
-                  "resource://gre/modules/Services.jsm"
-                );
                 win = Services.wm.getMostRecentWindow("navigator:browser");
               } else {
                 const { BrowserWindowTracker } = ChromeUtils.import(
diff --git a/testing/marionette/harness/marionette_harness/tests/unit/test_quit_restart.py b/testing/marionette/harness/marionette_harness/tests/unit/test_quit_restart.py
index 3a6b864b8a6f..d1221e4976d1 100644
--- a/testing/marionette/harness/marionette_harness/tests/unit/test_quit_restart.py
+++ b/testing/marionette/harness/marionette_harness/tests/unit/test_quit_restart.py
@@ -114,9 +114,6 @@ class TestQuitRestart(MarionetteTestCase):
         with self.marionette.using_context("chrome"):
             return self.marionette.execute_script(
                 """
-              const { Services } = ChromeUtils.import(
-                "resource://gre/modules/Services.jsm"
-              );
               return Services.appinfo.inSafeMode;
             """
             )
@@ -125,9 +122,6 @@ class TestQuitRestart(MarionetteTestCase):
         self.marionette.set_context("chrome")
         self.marionette.execute_script(
             """
-            const { Services } = ChromeUtils.import(
-              "resource://gre/modules/Services.jsm"
-            );
             let flags = Ci.nsIAppStartup.eAttemptQuit;
             if (arguments[0]) {
               flags |= Ci.nsIAppStartup.eRestart;
diff --git a/testing/marionette/harness/marionette_harness/tests/unit/test_switch_window_content.py b/testing/marionette/harness/marionette_harness/tests/unit/test_switch_window_content.py
index 5751ed9d71ea..311b06246e1c 100644
--- a/testing/marionette/harness/marionette_harness/tests/unit/test_switch_window_content.py
+++ b/testing/marionette/harness/marionette_harness/tests/unit/test_switch_window_content.py
@@ -49,9 +49,6 @@ class TestSwitchToWindowContent(WindowManagerMixin, MarionetteTestCase):
                 let win = null;
 
                 if (AppConstants.MOZ_APP_NAME == "fennec") {
-                  const { Services } = ChromeUtils.import(
-                    "resource://gre/modules/Services.jsm"
-                  );
                   win = Services.wm.getMostRecentWindow("navigator:browser");
                 } else {
                   const { BrowserWindowTracker } = ChromeUtils.import(
diff --git a/testing/mozharness/scripts/android_emulator_pgo.py b/testing/mozharness/scripts/android_emulator_pgo.py
index 38a9cfd658c3..b68aec772783 100644
--- a/testing/mozharness/scripts/android_emulator_pgo.py
+++ b/testing/mozharness/scripts/android_emulator_pgo.py
@@ -267,9 +267,6 @@ class AndroidProfileRun(TestingMixin, BaseScript, MozbaseMixin, AndroidMixin):
             driver.set_context("chrome")
             driver.execute_script(
                 """
-                const { Services } = ChromeUtils.import(
-                  "resource://gre/modules/Services.jsm"
-                );
                 let cancelQuit = Components.classes["@mozilla.org/supports-PRBool;1"]
                     .createInstance(Components.interfaces.nsISupportsPRBool);
                 Services.obs.notifyObservers(cancelQuit, "quit-application-requested", null);
@@ -278,9 +275,6 @@ class AndroidProfileRun(TestingMixin, BaseScript, MozbaseMixin, AndroidMixin):
             )
             driver.execute_script(
                 """
-                const { Services } = ChromeUtils.import(
-                  "resource://gre/modules/Services.jsm"
-                );
                 Services.startup.quit(Ci.nsIAppStartup.eAttemptQuit)
             """
             )
diff --git a/testing/xpcshell/selftest.py b/testing/xpcshell/selftest.py
index d4daa7398606..47d69ace1914 100755
--- a/testing/xpcshell/selftest.py
+++ b/testing/xpcshell/selftest.py
@@ -28,7 +28,6 @@ SIMPLE_PASSING_TEST = "function run_test() { Assert.ok(true); }"
 SIMPLE_FAILING_TEST = "function run_test() { Assert.ok(false); }"
 SIMPLE_PREFCHECK_TEST = """
 function run_test() {
-  const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
   Assert.ok(Services.prefs.getBoolPref("fake.pref.to.test"));
 }
 """
diff --git a/toolkit/components/telemetry/tests/integration/tests/conftest.py b/toolkit/components/telemetry/tests/integration/tests/conftest.py
index 3b1c2f6fdd79..8b02a8b3728a 100644
--- a/toolkit/components/telemetry/tests/integration/tests/conftest.py
+++ b/toolkit/components/telemetry/tests/integration/tests/conftest.py
@@ -110,9 +110,6 @@ class Browser(object):
         """
 
         script = """\
-        let { Services } = ChromeUtils.import(
-          "resource://gre/modules/Services.jsm"
-        );
         Services.telemetry.setEventRecordingEnabled("navigation", true);
         """
 
diff --git a/toolkit/components/telemetry/tests/marionette/tests/client/test_fog_deletion_request_ping.py b/toolkit/components/telemetry/tests/marionette/tests/client/test_fog_deletion_request_ping.py
index f956e857e1d8..133a04e31f18 100644
--- a/toolkit/components/telemetry/tests/marionette/tests/client/test_fog_deletion_request_ping.py
+++ b/toolkit/components/telemetry/tests/marionette/tests/client/test_fog_deletion_request_ping.py
@@ -38,7 +38,6 @@ class TestDeletionRequestPing(FOGTestCase):
 
         debug_tag = "my-test-tag"
         tagging_script = """\
-        const {{ Services }} = ChromeUtils.import("resource://gre/modules/Services.jsm");
         Services.fog.setTagPings("{}");
         """.format(
             debug_tag
diff --git a/toolkit/xre/test/marionette/test_exitcode.py b/toolkit/xre/test/marionette/test_exitcode.py
index 32fd3d2bc01c..bf1c8a3d7c3f 100644
--- a/toolkit/xre/test/marionette/test_exitcode.py
+++ b/toolkit/xre/test/marionette/test_exitcode.py
@@ -8,7 +8,6 @@ class TestFissionAutostart(MarionetteTestCase):
         def call_quit():
             self.marionette.execute_script(
                 """
-                const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
                 Services.startup.quit(Ci.nsIAppStartup.eAttemptQuit);
                 """,
                 sandbox="system",
@@ -23,7 +22,6 @@ class TestFissionAutostart(MarionetteTestCase):
         def call_quit():
             self.marionette.execute_script(
                 """
-                const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
                 Services.startup.quit(Ci.nsIAppStartup.eAttemptQuit, 5);
                 """,
                 sandbox="system",
diff --git a/toolkit/xre/test/marionette/test_fission_autostart.py b/toolkit/xre/test/marionette/test_fission_autostart.py
index a65af0e1d9ef..afbe33fdb5d6 100644
--- a/toolkit/xre/test/marionette/test_fission_autostart.py
+++ b/toolkit/xre/test/marionette/test_fission_autostart.py
@@ -133,8 +133,6 @@ class TestFissionAutostart(MarionetteTestCase):
           // We're running in a function, in a sandbox, that inherits from an
           // X-ray wrapped window. Anything we want to be globally available
           // needs to be defined on that window.
-          let { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
-          window.Services = Services;
           window.env = Cc["@mozilla.org/process/environment;1"]
                     .getService(Ci.nsIEnvironment);
         """
diff --git a/toolkit/xre/test/marionette/test_win32k_enrollment.py b/toolkit/xre/test/marionette/test_win32k_enrollment.py
index c8ecace538b8..a2e5e7c16e92 100644
--- a/toolkit/xre/test/marionette/test_win32k_enrollment.py
+++ b/toolkit/xre/test/marionette/test_win32k_enrollment.py
@@ -141,8 +141,6 @@ class TestWin32kAutostart(MarionetteTestCase):
           // We're running in a function, in a sandbox, that inherits from an
           // X-ray wrapped window. Anything we want to be globally available
           // needs to be defined on that window.
-          let { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
-          window.Services = Services;
           window.env = Cc["@mozilla.org/process/environment;1"]
                     .getService(Ci.nsIEnvironment);
         """
diff --git a/toolkit/xre/test/marionette/test_win32k_enrollment.template.py b/toolkit/xre/test/marionette/test_win32k_enrollment.template.py
index b9912407beb7..04cfebe4a4cf 100644
--- a/toolkit/xre/test/marionette/test_win32k_enrollment.template.py
+++ b/toolkit/xre/test/marionette/test_win32k_enrollment.template.py
@@ -141,8 +141,6 @@ class TestWin32kAutostart(MarionetteTestCase):
           // We're running in a function, in a sandbox, that inherits from an
           // X-ray wrapped window. Anything we want to be globally available
           // needs to be defined on that window.
-          let { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
-          window.Services = Services;
           window.env = Cc["@mozilla.org/process/environment;1"]
                     .getService(Ci.nsIEnvironment);
         """