diff -r 000000000000 -r 6474c204b198 toolkit/content/tests/browser/browser_browserDrop.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/content/tests/browser/browser_browserDrop.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,61 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function test() {
+  waitForExplicitFinish();
+
+  let newTab = gBrowser.selectedTab = gBrowser.addTab();
+  registerCleanupFunction(function () {
+    gBrowser.removeTab(newTab);
+  });
+
+  let scriptLoader = Cc["@mozilla.org/moz/jssubscript-loader;1"].
+                     getService(Ci.mozIJSSubScriptLoader);
+  let ChromeUtils = {};
+  scriptLoader.loadSubScript("chrome://mochikit/content/tests/SimpleTest/ChromeUtils.js", ChromeUtils);
+
+  let browser = gBrowser.selectedBrowser;
+
+  var linkHandlerActivated = 0;
+  // Don't worry about clobbering the droppedLinkHandler, since we're closing
+  // this tab after the test anyways
+  browser.droppedLinkHandler = function dlh(e, url, name) {
+    linkHandlerActivated++;
+    ok(!/(javascript|data)/i.test(url), "javascript link should not be dropped");
+  }
+
+  var receivedDropCount = 0;
+  function dropListener() {
+    receivedDropCount++;
+    if (receivedDropCount == triggeredDropCount) {
+      // Wait for the browser's system-phase event handler to run.
+      executeSoon(function () {
+        is(linkHandlerActivated, validDropCount,
+           "link handler was called correct number of times");
+        finish();
+      })
+    }
+  }
+  browser.addEventListener("drop", dropListener, false);
+  registerCleanupFunction(function () {
+    browser.removeEventListener("drop", dropListener, false);
+  });
+
+  var triggeredDropCount = 0;
+  var validDropCount = 0;
+  function drop(text, valid) {
+    triggeredDropCount++;
+    if (valid)
+      validDropCount++;
+    executeSoon(function () {
+      ChromeUtils.synthesizeDrop(browser, browser, [[{type: "text/plain", data: text}]], "copy", window);
+    });
+  }
+
+  drop("mochi.test/first", true);
+  drop("javascript:'bad'");
+  drop("jAvascript:'also bad'");
+  drop("mochi.test/second", true);
+  drop("data:text/html,bad");
+  drop("mochi.test/third", true);
+}