diff -r 000000000000 -r 6474c204b198 browser/base/content/newtab/dragDataHelper.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/base/content/newtab/dragDataHelper.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,22 @@
+#ifdef 0
+/* 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/. */
+#endif
+
+let gDragDataHelper = {
+  get mimeType() {
+    return "text/x-moz-url";
+  },
+
+  getLinkFromDragEvent: function DragDataHelper_getLinkFromDragEvent(aEvent) {
+    let dt = aEvent.dataTransfer;
+    if (!dt || !dt.types.contains(this.mimeType)) {
+      return null;
+    }
+
+    let data = dt.getData(this.mimeType) || "";
+    let [url, title] = data.split(/[\r\n]+/);
+    return {url: url, title: title};
+  }
+};