diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000000..db074f2c1d
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,2 @@
+/media/js/styleguide/logo-prototype/vendor/
+/media/js/plugincheck/lib/mustache.js
diff --git a/.eslintrc.js b/.eslintrc.js
index 1ee929dafe..edbe8d3439 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -23,5 +23,9 @@ module.exports = {
             2,
             "always"
         ]
+    },
+    "globals": {
+        "Mozilla": true,
+        "site": true
     }
 };
diff --git a/media/js/base/dnt-helper.js b/media/js/base/dnt-helper.js
index eb7522ea5b..ca30adeace 100644
--- a/media/js/base/dnt-helper.js
+++ b/media/js/base/dnt-helper.js
@@ -1,3 +1,5 @@
+/* exported _dntEnabled */
+
 /**
  * Returns true or false based on whether doNotTack is enabled. It also takes into account the
  * anomalies, such as !bugzilla 887703, which effect versions of Fx 31 and lower. It also handles
diff --git a/media/js/base/global-init.js b/media/js/base/global-init.js
index 2eeb7d502a..c86dd616d3 100644
--- a/media/js/base/global-init.js
+++ b/media/js/base/global-init.js
@@ -1,3 +1,6 @@
+/* global init_download_links, init_mobile_download_links,
+   update_download_text_for_old_fx, init_lang_switcher */
+
 // init global.js functions
 $(document).ready(function() {
     init_download_links();
diff --git a/media/js/base/global.js b/media/js/base/global.js
index d86fb96c0e..f3ca1e153f 100644
--- a/media/js/base/global.js
+++ b/media/js/base/global.js
@@ -2,6 +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/. */
 
+/* exported trigger_ie_download, init_download_links, update_download_text_for_old_fx,
+   init_mobile_download_links, init_lang_switcher */
 
 // download buttons
 
diff --git a/media/js/firefox/dev-firstrun.js b/media/js/firefox/dev-firstrun.js
index c9c25e6ffe..3ae41bd748 100644
--- a/media/js/firefox/dev-firstrun.js
+++ b/media/js/firefox/dev-firstrun.js
@@ -2,6 +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/. */
 
+/* global YT */
+
 // YouTube API hook has to be in global scope
 function onYouTubeIframeAPIReady() {
     'use strict';
diff --git a/media/js/firefox/dev-whatsnew.js b/media/js/firefox/dev-whatsnew.js
index 1ddb6a0465..b02001908e 100644
--- a/media/js/firefox/dev-whatsnew.js
+++ b/media/js/firefox/dev-whatsnew.js
@@ -2,6 +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/. */
 
+/* global YT */
+
 // YouTube API hook has to be in global scope
 
 // Videos are not yet ready for the whatsnew features (Performance Tools
diff --git a/media/js/firefox/developer.js b/media/js/firefox/developer.js
index bb49e6f3f1..67cf452f92 100644
--- a/media/js/firefox/developer.js
+++ b/media/js/firefox/developer.js
@@ -2,6 +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/. */
 
+/* global YT */
+
 // YouTube API hook has to be in global scope
 function onYouTubeIframeAPIReady() {
     Mozilla.firstRunOnYouTubeIframeAPIReady();
diff --git a/media/js/firefox/geolocation-demo.js b/media/js/firefox/geolocation-demo.js
index b9fba83146..150ab1d1ed 100644
--- a/media/js/firefox/geolocation-demo.js
+++ b/media/js/firefox/geolocation-demo.js
@@ -2,6 +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/. */
 
+/* global L */
+
 $(document).ready(function() {
     var map = null;
     var circle = null;
diff --git a/media/js/firefox/private-browsing.js b/media/js/firefox/private-browsing.js
index 8a1b0c16c6..85dcaff060 100644
--- a/media/js/firefox/private-browsing.js
+++ b/media/js/firefox/private-browsing.js
@@ -2,6 +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/. */
 
+/* global Waypoint */
+
 ;(function($) {
     'use strict';
 
diff --git a/media/js/mozorg/contact-spaces.js b/media/js/mozorg/contact-spaces.js
index 098d621c1b..e44e66e581 100644
--- a/media/js/mozorg/contact-spaces.js
+++ b/media/js/mozorg/contact-spaces.js
@@ -2,6 +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/. */
 
+/* global L */
+
 (function($) {
     'use strict';
 
diff --git a/media/js/newsletter/form.js b/media/js/newsletter/form.js
index 3d8c9ca61f..e575aa286b 100644
--- a/media/js/newsletter/form.js
+++ b/media/js/newsletter/form.js
@@ -2,6 +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/. */
 
+/* global Spinner */
+
 $(function () {
     'use strict';
 
diff --git a/media/js/plugincheck/check-plugins.js b/media/js/plugincheck/check-plugins.js
index 4cee22de1c..8be4707fb8 100644
--- a/media/js/plugincheck/check-plugins.js
+++ b/media/js/plugincheck/check-plugins.js
@@ -1,3 +1,6 @@
+/* global PluginCheck, Mustache, vulnerablePluginsTmpl, outdatedPluginsTmpl,
+   unknownPluginsTmpl, upToDatePluginsTmpl */
+
 $(function() {
     'use strict';
 
diff --git a/media/js/plugincheck/lib/version-compare.js b/media/js/plugincheck/lib/version-compare.js
index 25a1af007e..daad3aa7b3 100644
--- a/media/js/plugincheck/lib/version-compare.js
+++ b/media/js/plugincheck/lib/version-compare.js
@@ -1,3 +1,5 @@
+/* exported versionCompare */
+
 /**
 * Compares two software version numbers (e.g. "1.7.1" or "1.2b").
 *
diff --git a/media/js/plugincheck/tmpl/plugincheck.ui.tmpl.js b/media/js/plugincheck/tmpl/plugincheck.ui.tmpl.js
index 62737b8563..d04582dad6 100644
--- a/media/js/plugincheck/tmpl/plugincheck.ui.tmpl.js
+++ b/media/js/plugincheck/tmpl/plugincheck.ui.tmpl.js
@@ -1,3 +1,6 @@
+/* exported vulnerablePluginsTmpl, outdatedPluginsTmpl, unknownPluginsTmpl,
+   upToDatePluginsTmpl */
+
 var vulnerablePluginsTmpl = '{{#vulnerablePlugins}} <tr><th scope="row">' +
                         '<img class="icon" width="60" height="60" src="{{icon}}" alt="" />' +
                         '{{plugin_name}}' +
diff --git a/media/js/teach/smarton-landing.js b/media/js/teach/smarton-landing.js
index 96e81e34b1..cf9033514a 100644
--- a/media/js/teach/smarton-landing.js
+++ b/media/js/teach/smarton-landing.js
@@ -2,6 +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/. */
 
+/* global mina, Snap */
+
 ;(function($) {
     'use strict';
 
diff --git a/media/js/teach/smarton.js b/media/js/teach/smarton.js
index 43dbe2f541..1f6997bc64 100644
--- a/media/js/teach/smarton.js
+++ b/media/js/teach/smarton.js
@@ -2,6 +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/. */
 
+/* global Waypoint, Circles */
+
 ;(function($) {
     'use strict';
 
@@ -237,4 +239,3 @@
     });
 
 })(window.jQuery);
-