diff -r 000000000000 -r 6474c204b198 addon-sdk/source/examples/library-detector/data/library-detector.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/addon-sdk/source/examples/library-detector/data/library-detector.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,97 @@
+/*
+The code in this file is adapted from the original
+Library Detector add-on
+(https://addons.mozilla.org/en-US/firefox/addon/library-detector/) written by
+Paul Bakaus (http://paulbakaus.com/) and made available under the
+MIT License (http://www.opensource.org/licenses/mit-license.php).
+*/
+
+var LD_tests = {
+
+    'jQuery': {
+        test: function(win) {
+            var jq = win.jQuery || win.$ || win.$jq || win.$j;
+            if(jq && jq.fn && jq.fn.jquery) {
+                return { version: jq.fn.jquery };
+            } else {
+                return false;
+            }
+        }
+    },
+
+    'jQuery UI': {
+        //phonehome: 'http://jqueryui.com/phone_home',
+        test: function(win) {
+
+            var jq = win.jQuery || win.$ || win.$jq || win.$j;
+            if(jq && jq.fn && jq.fn.jquery && jq.ui) {
+
+                var plugins = 'accordion,datepicker,dialog,draggable,droppable,progressbar,resizable,selectable,slider,menu,grid,tabs'.split(','), concat = [];
+                for (var i=0; i < plugins.length; i++) { if(jq.ui[plugins[i]]) concat.push(plugins[i].substr(0,1).toUpperCase() + plugins[i].substr(1)); };
+
+                return { version: jq.ui.version, details: concat.length ? 'Plugins used: '+concat.join(',') : '' };
+            } else {
+                return false;
+            }
+
+        }
+    },
+
+    'MooTools': {
+        test: function(win) {
+            if(win.MooTools && win.MooTools.version) {
+                return { version: win.MooTools.version };
+            } else {
+                return false;
+            }
+        }
+    },
+
+    'YUI': {
+        test: function(win) {
+            if(win.YAHOO && win.YAHOO.VERSION) {
+                return { version: win.YAHOO.VERSION };
+            } else {
+                return false;
+            }
+        }
+    },
+
+    'Closure': {
+        test: function(win) {
+            if(win.goog) {
+                return { version: '2.0' };
+            }
+            return false;
+        }
+    },
+
+    'Modernizr': {
+        test: function(win) {
+            if(win.Modernizr) {
+                return { version: win.Modernizr._version };
+            }
+            return false;
+        }
+    },
+
+
+};
+
+function testLibraries() {
+  var win = unsafeWindow;
+  var libraryList = [];
+  for(var i in LD_tests) {
+    var passed = LD_tests[i].test(win);
+    if (passed) {
+      let libraryInfo = {
+        name: i,
+        version: passed.version
+      };
+      libraryList.push(libraryInfo);
+    }
+  }
+  self.postMessage(libraryList);
+}
+
+testLibraries();
\ No newline at end of file