diff -r 000000000000 -r 6474c204b198 dom/indexedDB/test/browser_bug839193.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/indexedDB/test/browser_bug839193.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,36 @@
+/* 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/. */
+
+let gTestRoot = getRootDirectory(gTestPath);
+let gBugWindow = null;
+let gIterations = 5;
+
+function onLoad() {
+  gBugWindow.close();
+}
+
+function onUnload() {
+  if (!gIterations) {
+    gBugWindow = null;
+    Services.obs.removeObserver(onLoad, "bug839193-loaded");
+    Services.obs.removeObserver(onUnload, "bug839193-unloaded");
+
+    window.focus();
+    finish();
+  } else {
+    gBugWindow = window.openDialog(gTestRoot + "bug839193.xul");
+    gIterations--;
+  }
+}
+
+// This test is about leaks, which are handled by the test harness, so
+// there are no actual checks here. Whether or not this test passes or fails
+// will be apparent by the checks the harness performs.
+function test() {
+  waitForExplicitFinish();
+  Services.obs.addObserver(onLoad, "bug839193-loaded", false);
+  Services.obs.addObserver(onUnload, "bug839193-unloaded", false);
+
+  gBugWindow = window.openDialog(gTestRoot + "bug839193.xul");
+}