diff --git a/.eslintignore b/.eslintignore
index d10aa67a6645..cc303851bff2 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -131,8 +131,6 @@ dom/workers/test/invalid.js
 dom/workers/test/threadErrors_worker1.js
 
 # intl/ exclusions
-intl/locale/
-intl/strres/
 intl/uconv/
 # Bug 1527075: This directory is linted in github repository
 intl/l10n/
diff --git a/intl/locale/PluralForm.jsm b/intl/locale/PluralForm.jsm
index 14596673ed51..cab11a492e3e 100644
--- a/intl/locale/PluralForm.jsm
+++ b/intl/locale/PluralForm.jsm
@@ -4,6 +4,8 @@
 
 var EXPORTED_SYMBOLS = ["PluralForm"];
 
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
 /**
  * This module provides the PluralForm object which contains a method to figure
  * out which plural form of a word to use for a given number based on the
@@ -36,6 +38,7 @@ const kIntlProperties = "chrome://global/locale/intl.properties";
 // These are the available plural functions that give the appropriate index
 // based on the plural rule number specified. The first element is the number
 // of plural forms and the second is the function to figure out the index.
+/* eslint-disable no-nested-ternary */
 var gFunctions = [
   // 0: Chinese
   [1, n => 0],
@@ -184,6 +187,7 @@ var gFunctions = [
         : 2,
   ],
 ];
+/* eslint-enable no-nested-ternary */
 
 var PluralForm = {
   /**
@@ -290,8 +294,7 @@ var PluralForm = {
    */
   get ruleNum() {
     return Number(
-      Cc["@mozilla.org/intl/stringbundle;1"]
-        .getService(Ci.nsIStringBundleService)
+      Services.strings
         .createBundle(kIntlProperties)
         .GetStringFromName("pluralRule")
     );
@@ -306,8 +309,6 @@ var PluralForm = {
  */
 function log(aMsg) {
   let msg = "PluralForm.jsm: " + (aMsg.join ? aMsg.join("") : aMsg);
-  Cc["@mozilla.org/consoleservice;1"]
-    .getService(Ci.nsIConsoleService)
-    .logStringMessage(msg);
+  Services.console.logStringMessage(msg);
   dump(msg + "\n");
 }
diff --git a/intl/locale/tests/unit/test_localeService.js b/intl/locale/tests/unit/test_localeService.js
index da09e77fc26d..1970ae94b260 100644
--- a/intl/locale/tests/unit/test_localeService.js
+++ b/intl/locale/tests/unit/test_localeService.js
@@ -7,9 +7,7 @@ const osPrefs = Cc["@mozilla.org/intl/ospreferences;1"].getService(
   Ci.mozIOSPreferences
 );
 
-const localeService = Cc["@mozilla.org/intl/localeservice;1"].getService(
-  Ci.mozILocaleService
-);
+const localeService = Services.locale;
 
 /**
  * Make sure the locale service can be instantiated.
diff --git a/intl/locale/tests/unit/test_localeService_negotiateLanguages.js b/intl/locale/tests/unit/test_localeService_negotiateLanguages.js
index 7f0fa63c62df..0cd27eb3bfc2 100644
--- a/intl/locale/tests/unit/test_localeService_negotiateLanguages.js
+++ b/intl/locale/tests/unit/test_localeService_negotiateLanguages.js
@@ -2,9 +2,8 @@
  * 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/. */
 
-const localeService = Cc["@mozilla.org/intl/localeservice;1"].getService(
-  Ci.mozILocaleService
-);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const localeService = Services.locale;
 
 const data = {
   filtering: {
@@ -148,10 +147,10 @@ function run_test() {
         const requested = test[0];
         const available = test[1];
         const defaultLocale = test.length > 3 ? test[2] : undefined;
-        const strategy = test.length > 4 ? test[3] : undefined;
+        const strategyInner = test.length > 4 ? test[3] : undefined;
         const supported = test[test.length - 1];
 
-        const result = nl(test[0], test[1], defaultLocale, strategy);
+        const result = nl(test[0], test[1], defaultLocale, strategyInner);
         deepEqual(
           result,
           supported,
diff --git a/intl/strres/tests/unit/test_bug378839.js b/intl/strres/tests/unit/test_bug378839.js
index 8d216a1cc8c4..360e520761ef 100644
--- a/intl/strres/tests/unit/test_bug378839.js
+++ b/intl/strres/tests/unit/test_bug378839.js
@@ -1,6 +1,8 @@
 /* Tests getting properties from string bundles
  */
 
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
 const name_file = "file";
 const value_file = "File";
 
@@ -27,11 +29,8 @@ const var_hello = "World";
 const value_hello = "Hello World"; // tests formatStringFromName with parameter
 
 function run_test() {
-  var StringBundle = Cc["@mozilla.org/intl/stringbundle;1"].getService(
-    Ci.nsIStringBundleService
-  );
-  var ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
-  var bundleURI = ios.newFileURI(do_get_file("strres.properties"));
+  var StringBundle = Services.strings;
+  var bundleURI = Services.io.newFileURI(do_get_file("strres.properties"));
 
   var bundle = StringBundle.createBundle(bundleURI.spec);
 
diff --git a/intl/strres/tests/unit/test_bug397093.js b/intl/strres/tests/unit/test_bug397093.js
index d9f27af1edf7..ccc9b5f2aa00 100644
--- a/intl/strres/tests/unit/test_bug397093.js
+++ b/intl/strres/tests/unit/test_bug397093.js
@@ -4,6 +4,8 @@
  * all GetStringFromName calls should fail.
  */
 
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
 const name_ascii = "asciiProperty";
 const value_ascii = "";
 
@@ -14,11 +16,8 @@ const name_latin1 = "latin1";
 const value_latin1 = "";
 
 function run_test() {
-  var StringBundle = Cc["@mozilla.org/intl/stringbundle;1"].getService(
-    Ci.nsIStringBundleService
-  );
-  var ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
-  var bundleURI = ios.newFileURI(do_get_file("397093.properties"));
+  var StringBundle = Services.strings;
+  var bundleURI = Services.io.newFileURI(do_get_file("397093.properties"));
 
   var bundle = StringBundle.createBundle(bundleURI.spec);