diff --git a/content/html/content/test/Makefile.in b/content/html/content/test/Makefile.in
index 8e777f7f7b4..3b9e2b6a934 100644
--- a/content/html/content/test/Makefile.in
+++ b/content/html/content/test/Makefile.in
@@ -307,6 +307,7 @@ MOCHITEST_FILES = \
 		file_iframe_sandbox_pass.js \
 		file_iframe_sandbox_fail.js \
 		test_iframe_sandbox_navigation.html \
+		test_iframe_sandbox_navigation2.html \
 		file_iframe_sandbox_d_if1.html \
 		file_iframe_sandbox_d_if2.html \
 		file_iframe_sandbox_d_if3.html \
@@ -320,6 +321,15 @@ MOCHITEST_FILES = \
 		file_iframe_sandbox_d_if11.html \
 		file_iframe_sandbox_d_if12.html \
 		file_iframe_sandbox_d_if13.html \
+		file_iframe_sandbox_d_if14.html \
+		file_iframe_sandbox_d_if15.html \
+		file_iframe_sandbox_d_if16.html \
+		file_iframe_sandbox_d_if17.html \
+		file_iframe_sandbox_d_if18.html \
+		file_iframe_sandbox_d_if19.html \
+		file_iframe_sandbox_d_if20.html \
+		file_iframe_sandbox_d_if21.html \
+		file_iframe_sandbox_d_if22.html \
 		file_iframe_sandbox_navigation_start.html \
 		file_iframe_sandbox_navigation_pass.html \
 		file_iframe_sandbox_navigation_fail.html \
@@ -329,8 +339,19 @@ MOCHITEST_FILES = \
 		file_iframe_sandbox_e_if4.html \
 		file_iframe_sandbox_e_if5.html \
 		file_iframe_sandbox_e_if6.html \
+		file_iframe_sandbox_e_if7.html \
+		file_iframe_sandbox_e_if8.html \
+		file_iframe_sandbox_e_if9.html \
+		file_iframe_sandbox_e_if10.html \
+		file_iframe_sandbox_e_if11.html \
+		file_iframe_sandbox_e_if12.html \
+		file_iframe_sandbox_e_if13.html \
+		file_iframe_sandbox_e_if14.html \
+		file_iframe_sandbox_e_if15.html \
+		file_iframe_sandbox_e_if16.html \
 		file_iframe_sandbox_top_navigation_pass.html \
 		file_iframe_sandbox_top_navigation_fail.html \
+		file_iframe_sandbox_window_navigation_fail.html \
 		test_iframe_sandbox_plugins.html \
 		file_iframe_sandbox_f_if1.html \
 		file_iframe_sandbox_f_if2.html \
diff --git a/content/html/content/test/file_iframe_sandbox_d_if1.html b/content/html/content/test/file_iframe_sandbox_d_if1.html
index 8af6c6b1124..054edbfe148 100644
--- a/content/html/content/test/file_iframe_sandbox_d_if1.html
+++ b/content/html/content/test/file_iframe_sandbox_d_if1.html
@@ -14,6 +14,6 @@ function doTest() {
 <body onload="doTest()">
   I am sandboxed with 'allow-scripts'
 
-  <a href="file_iframe_sandbox_navigation_pass.html?if_1" target="_self" id='anchor'>
+  <a href="file_iframe_sandbox_navigation_pass.html?Test 1:%20" target="_self" id='anchor'>
 </body>
 </html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if14.html b/content/html/content/test/file_iframe_sandbox_d_if14.html
new file mode 100644
index 00000000000..3041fc448cf
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_d_if14.html
@@ -0,0 +1,35 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Tests for Bug 838692</title>
+  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script type="text/javascript">
+  var test20Context = "Test 20: Navigate another window (not opened by us): ";
+
+  function doTest() {
+    // Try to navigate auxiliary browsing context (window) not opened by us.
+    // We should not be able to do this as we are sandboxed.
+    sendMouseEvent({type:'click'}, 'navigate_window');
+    window.parent.postMessage("test attempted", "*");
+
+    // Try to navigate auxiliary browsing context (window) not opened by us, using window.open().
+    // We should not be able to do this as we are sandboxed.
+    try {
+      window.open("file_iframe_sandbox_window_navigation_fail.html?" + escape(test20Context), "window_to_navigate2");
+      window.parent.postMessage("test attempted", "*");
+    } catch(error) {
+      window.parent.postMessage({ok: true, desc: test20Context + "as expected, error thrown during window.open(..., \"window_to_navigate2\")"}, "*");
+    }
+  }
+</script>
+
+<body onload="doTest()">
+  I am sandboxed but with "allow-scripts allow-same-origin allow-top-navigation".
+
+  <a href="file_iframe_sandbox_window_navigation_fail.html?Test 14: Navigate another window (not opened by us):%20" target="window_to_navigate" id="navigate_window">navigate window</a>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if15.html b/content/html/content/test/file_iframe_sandbox_d_if15.html
new file mode 100644
index 00000000000..6c969c8fe1d
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_d_if15.html
@@ -0,0 +1,14 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<body>
+  I am an unsandboxed iframe.
+
+  <iframe sandbox="allow-same-origin allow-scripts" id="if_16" src="file_iframe_sandbox_d_if16.html" height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if16.html b/content/html/content/test/file_iframe_sandbox_d_if16.html
new file mode 100644
index 00000000000..a27e098801b
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_d_if16.html
@@ -0,0 +1,22 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+</head>
+
+<script type="application/javascript">
+function doTest() {
+  window.parent.parent.postMessage("test attempted", "*");
+  sendMouseEvent({type:'click'}, 'anchor');
+}
+</script>
+
+<body onload="doTest()">
+  I am sandboxed with 'allow-same-origin allow-scripts'
+
+  <a href="file_iframe_sandbox_navigation_fail.html?Test 16: Navigate parent/ancestor by name:%20" target='if_parent' id='anchor'>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if17.html b/content/html/content/test/file_iframe_sandbox_d_if17.html
new file mode 100644
index 00000000000..047a08137d9
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_d_if17.html
@@ -0,0 +1,24 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script type="application/javascript">
+  var testContext = "Test 17: navigate _self with window.open(): ";
+
+  function doTest() {
+    try {
+      window.open("file_iframe_sandbox_navigation_pass.html?" + escape(testContext), "_self");
+    } catch(error) {
+      window.parent.postMessage({ok: false, desc: testContext + "error thrown during window.open(..., \"_self\")"}, "*");
+    }
+  }
+</script>
+
+<body onload="doTest()">
+  I am sandboxed with 'allow-scripts'
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if18.html b/content/html/content/test/file_iframe_sandbox_d_if18.html
new file mode 100644
index 00000000000..03aa0aa9bd8
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_d_if18.html
@@ -0,0 +1,33 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+</head>
+
+<script type="application/javascript">
+  window.addEventListener("message", receiveMessage, false);
+
+  function receiveMessage(event) {
+    window.parent.postMessage(event.data, "*");
+  }
+
+  var testContext = "Test 18: navigate child with window.open(): ";
+
+  function doTest() {
+    try {
+      window.open("file_iframe_sandbox_navigation_pass.html?" + escape(testContext), "foo");
+    } catch(error) {
+      window.parent.postMessage({ok: false, desc: testContext + " error thrown during window.open(..., \"foo\")"}, "*");
+    }
+  }
+</script>
+
+<body onload="doTest()">
+  I am sandboxed with 'allow-scripts'
+
+  <iframe name="foo" height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if19.html b/content/html/content/test/file_iframe_sandbox_d_if19.html
new file mode 100644
index 00000000000..d766d264920
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_d_if19.html
@@ -0,0 +1,13 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+  I am sandboxed with 'allow-scripts'
+
+  <iframe sandbox="allow-scripts" id="if_20" src="file_iframe_sandbox_d_if20.html" height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if2.html b/content/html/content/test/file_iframe_sandbox_d_if2.html
index 5e51075a073..763585c6222 100644
--- a/content/html/content/test/file_iframe_sandbox_d_if2.html
+++ b/content/html/content/test/file_iframe_sandbox_d_if2.html
@@ -10,8 +10,8 @@
 // needed to forward the message to the main test page
 window.addEventListener("message", receiveMessage, false);
 
-function receiveMessage(event) { 
-  window.parent.postMessage({ok: event.data.ok, desc: event.data.desc}, "*");
+function receiveMessage(event) {
+  window.parent.postMessage(event.data, "*");
 }
 
 function doTest() {
@@ -23,6 +23,6 @@ function doTest() {
 
   <iframe name="foo" src="file_iframe_sandbox_navigation_start.html" height="10" width="10"></iframe>
 
-  <a href="file_iframe_sandbox_navigation_pass.html?if2" target='foo' id='anchor'>
+  <a href="file_iframe_sandbox_navigation_pass.html?Test 2:%20" target='foo' id='anchor'>
 </body>
 </html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if20.html b/content/html/content/test/file_iframe_sandbox_d_if20.html
new file mode 100644
index 00000000000..49d6d6a44c4
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_d_if20.html
@@ -0,0 +1,25 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script type="application/javascript">
+  var testContext = "Test 19: navigate _parent with window.open(): ";
+
+  function doTest() {
+    try {
+      window.open("file_iframe_sandbox_navigation_fail.html?" + escape(testContext), "_parent");
+      window.parent.parent.postMessage("test attempted", "*");
+    } catch(error) {
+      window.parent.parent.postMessage({ok: true, desc: testContext + "as expected, error thrown during window.open(..., \"_parent\")"}, "*");
+    }
+  }
+</script>
+
+<body onload="doTest()">
+  I am sandboxed with 'allow-scripts'
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if21.html b/content/html/content/test/file_iframe_sandbox_d_if21.html
new file mode 100644
index 00000000000..6d0ab232e0e
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_d_if21.html
@@ -0,0 +1,14 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<body>
+  I am an unsandboxed iframe.
+
+  <iframe sandbox="allow-same-origin allow-scripts" id="if_22" src="file_iframe_sandbox_d_if22.html" height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if22.html b/content/html/content/test/file_iframe_sandbox_d_if22.html
new file mode 100644
index 00000000000..4edb24d1443
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_d_if22.html
@@ -0,0 +1,25 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script type="application/javascript">
+  var testContext = "Test 21: navigate parent by name with window.open(): ";
+
+  function doTest() {
+    try {
+      window.open("file_iframe_sandbox_navigation_fail.html?" + escape(testContext), "if_parent2");
+      window.parent.parent.postMessage("test attempted", "*");
+    } catch(error) {
+      window.parent.parent.postMessage({ok: true, desc: testContext + "as expected, error thrown during window.open(..., \"if_parent2\")"}, "*");
+    }
+  }
+</script>
+
+<body onload="doTest()">
+  I am sandboxed with 'allow-same-origin allow-scripts'
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if4.html b/content/html/content/test/file_iframe_sandbox_d_if4.html
index 8138d14f00d..692391b17c7 100644
--- a/content/html/content/test/file_iframe_sandbox_d_if4.html
+++ b/content/html/content/test/file_iframe_sandbox_d_if4.html
@@ -8,6 +8,7 @@
 </head>
 <script type="application/javascript">
 function doTest() {
+  window.parent.parent.postMessage("test attempted", "*");
   sendMouseEvent({type:'click'}, 'anchor');
 }
 </script>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if5.html b/content/html/content/test/file_iframe_sandbox_d_if5.html
index 5191bd46fb8..f4845e21f8e 100644
--- a/content/html/content/test/file_iframe_sandbox_d_if5.html
+++ b/content/html/content/test/file_iframe_sandbox_d_if5.html
@@ -9,11 +9,12 @@
 <script type="application/javascript">
 function doTest() {
   sendMouseEvent({type:'click'}, 'anchor');
+  window.parent.postMessage("test attempted", "*");
 }
 </script>
 <body onload="doTest()">
   I am sandboxed with 'allow-scripts allow-same-origin'
 
-  <a href="file_iframe_sandbox_navigation_fail.html" target='sibling' id='anchor'>
+  <a href="file_iframe_sandbox_navigation_fail.html?Test 4: Navigate sibling iframe by name:%20" target='if_sibling' id='anchor'>
 </body>
 </html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if7.html b/content/html/content/test/file_iframe_sandbox_d_if7.html
index 4b8062eb715..5023ee02946 100644
--- a/content/html/content/test/file_iframe_sandbox_d_if7.html
+++ b/content/html/content/test/file_iframe_sandbox_d_if7.html
@@ -1,16 +1,20 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-</head>
-<script type="application/javascript">
-function doTest() {
-  window.parent.ok_wrapper(false, "a sandboxed document when navigated should still NOT be same-origin with its parent");
-}
-</script>
-<body onload="doTest()">
-  I am sandboxed with 'allow-scripts'
-</body>
-</html>
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<script type="application/javascript">
+function doTest() {
+  try {
+    window.parent.ok_wrapper(false, "a sandboxed document when navigated should still NOT be same-origin with its parent");
+  } catch(error) {
+    window.parent.postMessage({ok: true, desc: "sandboxed document's attempt to access parent after navigation blocked, as not same-origin."}, "*");
+  }
+}
+</script>
+<body onload="doTest()">
+  I am sandboxed with 'allow-scripts'
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_d_if8.html b/content/html/content/test/file_iframe_sandbox_d_if8.html
index ded19cff55b..2f8618329ac 100644
--- a/content/html/content/test/file_iframe_sandbox_d_if8.html
+++ b/content/html/content/test/file_iframe_sandbox_d_if8.html
@@ -1,16 +1,24 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-</head>
-<script type="application/javascript">
-function doTest() {
-  window.parent.modify_if_8();
-}
-</script>
-<body onload="doTest()">
-  I am sandboxed with 'allow-scripts' and 'allow-same-origin' the first time I am loaded, and with 'allow-scripts' the second time
-</body>
-</html>
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<script type="application/javascript">
+function doTest() {
+  if (location.search == "?onreload") {
+    try {
+      window.parent.modify_if_8();
+    } catch (error) {
+      window.parent.postMessage({ok: true, desc: "allow-same-origin is no longer in effect after reload - parent access blocked."}, "*");
+    }
+  } else {
+    window.parent.modify_if_8();
+  }
+}
+</script>
+<body onload="doTest()">
+  I am sandboxed with 'allow-scripts' and 'allow-same-origin' the first time I am loaded, and with 'allow-scripts' the second time
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if1.html b/content/html/content/test/file_iframe_sandbox_e_if1.html
index 08ba5b70fc1..69f827ce498 100644
--- a/content/html/content/test/file_iframe_sandbox_e_if1.html
+++ b/content/html/content/test/file_iframe_sandbox_e_if1.html
@@ -1,24 +1,20 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-</head>
-<body>
-  <script>
-    window.addEventListener("message", receiveMessage, false);
-
-    function receiveMessage(event)
-    {
-      window.parent.postMessage("close", "*");
-
-      SimpleTest.executeSoon(function() {
-        window.close();
-      }); 
-    }
-  </script>
-  <iframe sandbox='allow-scripts allow-same-origin' id='if_6' src="file_iframe_sandbox_e_if6.html" height="10" width="10"></iframe>
-</body>
-</html>
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+</head>
+
+<script>
+  function doTest() {
+    var testContext = location.search == "" ? "?Test 10: Navigate _top:%20" : location.search;
+    document.getElementById("if_6").src = "file_iframe_sandbox_e_if6.html" + testContext;
+  }
+</script>
+
+<body onload="doTest()">
+  <iframe sandbox='allow-scripts' id='if_6' height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if10.html b/content/html/content/test/file_iframe_sandbox_e_if10.html
new file mode 100644
index 00000000000..2484b8f3428
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if10.html
@@ -0,0 +1,19 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script>
+  function doTest() {
+    var testContext = "?Test 23: Nested navigate _top with window.open():%20";
+    document.getElementById("if_9").src = "file_iframe_sandbox_e_if9.html" + testContext;
+  }
+</script>
+
+<body onload="doTest()">
+  <iframe sandbox='allow-scripts allow-top-navigation' id='if_9' height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if11.html b/content/html/content/test/file_iframe_sandbox_e_if11.html
new file mode 100644
index 00000000000..42c28021a04
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if11.html
@@ -0,0 +1,24 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<script>
+  function doTest() {
+    var testContext = location.search.substring(1);
+    try {
+      var topsOpener = window.top.opener;
+      window.open("file_iframe_sandbox_top_navigation_pass.html?" + testContext, "_top");
+      topsOpener.postMessage({ok: true, desc: unescape(testContext) + "top navigation should be allowed by a document sandboxed with 'allow-top-navigation.'"}, "*");
+    } catch(error) {
+      window.top.opener.postMessage({ok: false, desc: unescape(testContext) + "error thrown during window.open(..., \"_top\")"}, "*");
+      window.top.close();
+    }
+  }
+</script>
+<body onload="doTest()">
+  I am sandboxed with 'allow-scripts and allow-top-navigation'
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if12.html b/content/html/content/test/file_iframe_sandbox_e_if12.html
new file mode 100644
index 00000000000..0b1b87e09be
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if12.html
@@ -0,0 +1,19 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script>
+  function doTest() {
+    var testContext = location.search == "" ? "?Test 24: Navigate _top with window.open():%20" : location.search;
+    document.getElementById("if_14").src = "file_iframe_sandbox_e_if14.html" + testContext;
+  }
+</script>
+
+<body onload="doTest()">
+  <iframe sandbox='allow-scripts' id='if_14' height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if13.html b/content/html/content/test/file_iframe_sandbox_e_if13.html
new file mode 100644
index 00000000000..f5cf912f679
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if13.html
@@ -0,0 +1,19 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script>
+  function doTest() {
+    var testContext = "?Test 25: Nested navigate _top with window.open():%20";
+    document.getElementById("if_12").src = "file_iframe_sandbox_e_if12.html" + testContext;
+  }
+</script>
+
+<body onload="doTest()">
+  <iframe sandbox='allow-scripts allow-top-navigation' id='if_12' height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if14.html b/content/html/content/test/file_iframe_sandbox_e_if14.html
new file mode 100644
index 00000000000..76d97870203
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if14.html
@@ -0,0 +1,24 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<script>
+  function doTest() {
+    var testContext = location.search.substring(1);
+    try {
+      var topsOpener = window.top.opener;
+      window.open("file_iframe_sandbox_top_navigation_fail.html?" + testContext, "_top");
+      topsOpener.postMessage({ok: false, desc: unescape(testContext) + "top navigation should NOT be allowed by a document sandboxed without 'allow-top-navigation.'"}, "*");
+    } catch(error) {
+      window.top.opener.postMessage({ok: true, desc: unescape(testContext) + "as expected error thrown during window.open(..., \"_top\")"}, "*");
+      window.top.close();
+    }
+  }
+</script>
+<body onload="doTest()">
+  I am sandboxed with 'allow-scripts'
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if15.html b/content/html/content/test/file_iframe_sandbox_e_if15.html
new file mode 100644
index 00000000000..bf4138e1d69
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if15.html
@@ -0,0 +1,17 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script>
+  // Set our name, to allow an attempt to navigate us by name.
+  window.name = "e_if15";
+</script>
+
+<body>
+  <iframe sandbox='allow-scripts' id='if_16' src="file_iframe_sandbox_e_if16.html" height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if16.html b/content/html/content/test/file_iframe_sandbox_e_if16.html
new file mode 100644
index 00000000000..06c8bf8714f
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if16.html
@@ -0,0 +1,27 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Tests for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script>
+  var testContext = "Test 26: navigate top by name with window.open(): ";
+
+  function doTest() {
+    try {
+      var topsOpener = window.top.opener;
+      window.open("file_iframe_sandbox_top_navigation_fail.html?" + escape(testContext), "e_if15");
+      topsOpener.postMessage({ok: false, desc: unescape(testContext) + "top navigation should NOT be allowed by a document sandboxed without 'allow-top-navigation.'"}, "*");
+    } catch(error) {
+      window.top.opener.postMessage({ok: true, desc: testContext + "as expected, error thrown during window.open(..., \"e_if15\")"}, "*");
+      window.top.close();
+    }
+  }
+</script>
+
+<body onload="doTest()">
+  I am sandboxed but with "allow-scripts"
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if2.html b/content/html/content/test/file_iframe_sandbox_e_if2.html
index 17b51dfd82b..47251d6dc8f 100644
--- a/content/html/content/test/file_iframe_sandbox_e_if2.html
+++ b/content/html/content/test/file_iframe_sandbox_e_if2.html
@@ -1,22 +1,12 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-</head>
-<body>
-  <script>
-    window.addEventListener("message", receiveMessage, false);
-
-    function receiveMessage(event)
-    {
-      SimpleTest.executeSoon(function() {
-        window.close();
-      });
-    }
-  </script>
-  <iframe sandbox='allow-scripts allow-top-navigation allow-same-origin' id='if_1' src="file_iframe_sandbox_e_if1.html" height="10" width="10"></iframe>
-</body>
-</html>
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+</head>
+<body>
+  <iframe sandbox='allow-scripts allow-top-navigation allow-same-origin' id='if_1' src="file_iframe_sandbox_e_if1.html?Test 11: Nested navigate _top:%20" height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if6.html b/content/html/content/test/file_iframe_sandbox_e_if6.html
index 4b74c34dd79..365d8322794 100644
--- a/content/html/content/test/file_iframe_sandbox_e_if6.html
+++ b/content/html/content/test/file_iframe_sandbox_e_if6.html
@@ -1,24 +1,22 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
-  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-</head>
-<script type="application/javascript">
-function doTest() {
-  sendMouseEvent({type:'click'}, 'anchor');
-
-   SimpleTest.executeSoon(function() {
-     window.parent.postMessage("close", "*");
-   });
-}
-</script>
-<body onload="doTest()">
-  I am sandboxed with 'allow-scripts'
-
-  <a href="file_iframe_sandbox_top_navigation_fail.html" target='_top' id='anchor'>
-</body>
-</html>
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+</head>
+<script type="application/javascript">
+function doTest() {
+  document.getElementById('anchor').href = "file_iframe_sandbox_top_navigation_fail.html" + location.search;
+  window.top.opener.postMessage("test attempted", "*");
+  sendMouseEvent({type:'click'}, 'anchor');
+}
+</script>
+<body onload="doTest()">
+  I am sandboxed with 'allow-scripts'
+
+  <a target='_top' id='anchor'>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if7.html b/content/html/content/test/file_iframe_sandbox_e_if7.html
new file mode 100644
index 00000000000..9d60ed2dbc1
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if7.html
@@ -0,0 +1,17 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script>
+  // Set our name, to allow an attempt to navigate us by name.
+  window.name = "e_if7";
+</script>
+
+<body>
+  <iframe sandbox='allow-scripts' id='if_8' src="file_iframe_sandbox_e_if8.html" height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if8.html b/content/html/content/test/file_iframe_sandbox_e_if8.html
new file mode 100644
index 00000000000..62d6178b134
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if8.html
@@ -0,0 +1,23 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Tests for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+</head>
+
+<script>
+  function doTest() {
+    // Try to navigate top using its name (e_if7).  We should not be able to do this as allow-top-navigation is not specified.
+    window.top.opener.postMessage("test attempted", "*");
+    sendMouseEvent({type:'click'}, 'navigate_top');
+  }
+</script>
+
+<body onload="doTest()">
+  I am sandboxed but with "allow-scripts"
+
+  <a href="file_iframe_sandbox_top_navigation_fail.html?Test 15: Navigate top by name:%20" target="e_if7" id="navigate_top">navigate top</a>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_e_if9.html b/content/html/content/test/file_iframe_sandbox_e_if9.html
new file mode 100644
index 00000000000..f18a16dba60
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_e_if9.html
@@ -0,0 +1,19 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script>
+  function doTest() {
+    var testContext = location.search == "" ? "?Test 22: Navigate _top with window.open():%20" : location.search;
+    document.getElementById("if_11").src = "file_iframe_sandbox_e_if11.html" + testContext;
+  }
+</script>
+
+<body onload="doTest()">
+  <iframe sandbox='allow-scripts allow-top-navigation' id='if_11' height="10" width="10"></iframe>
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_navigation_fail.html b/content/html/content/test/file_iframe_sandbox_navigation_fail.html
index 151cf50765a..bae5276bd11 100644
--- a/content/html/content/test/file_iframe_sandbox_navigation_fail.html
+++ b/content/html/content/test/file_iframe_sandbox_navigation_fail.html
@@ -1,16 +1,17 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-</head>
-<body onLoad="doStuff()">
-FAIL
-</body>
-<script>
-  function doStuff() {
-    window.parent.postMessage({ok: false, desc: "this navigation should NOT be allowed by a sandboxed document"}, "*");
-  }
-</script>
-</html>
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body onLoad="doStuff()">
+FAIL
+</body>
+<script>
+  function doStuff() {
+    var testContext = unescape(location.search.substring(1));
+    window.parent.postMessage({ok: false, desc: testContext + "this navigation should NOT be allowed by a sandboxed document", addToAttempted: false}, "*");
+  }
+</script>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_navigation_pass.html b/content/html/content/test/file_iframe_sandbox_navigation_pass.html
index 9f8ec967208..e07248247b0 100644
--- a/content/html/content/test/file_iframe_sandbox_navigation_pass.html
+++ b/content/html/content/test/file_iframe_sandbox_navigation_pass.html
@@ -1,16 +1,17 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-</head>
-<script>
-function doStuff() {
-  window.parent.postMessage({ok: true, desc: "this navigation should be allowed by a sandboxed document"}, "*");
-}
-</script>
-<body onLoad="doStuff()">
-PASS
-</body>
-</html>
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<script>
+function doStuff() {
+  var testContext = unescape(location.search.substring(1));
+  window.parent.postMessage({ok: true, desc: testContext + "this navigation should be allowed by a sandboxed document"}, "*");
+}
+</script>
+<body onLoad="doStuff()">
+PASS
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_top_navigation_fail.html b/content/html/content/test/file_iframe_sandbox_top_navigation_fail.html
index 9158dce65ce..dad6b2c006f 100644
--- a/content/html/content/test/file_iframe_sandbox_top_navigation_fail.html
+++ b/content/html/content/test/file_iframe_sandbox_top_navigation_fail.html
@@ -1,17 +1,18 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-</head>
-<script>
-function doStuff() {
-	window.opener.postMessage({ok: false, desc:  "top navigation should NOT be allowed by a document sandboxed without 'allow-top-navigation'"}, "*");
-	window.close();
-}
-</script>
-<body onLoad="doStuff()">
-FAIL\
-</body>
-</html>
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<script>
+function doStuff() {
+  var testContext = unescape(location.search.substring(1));
+  window.opener.postMessage({ok: false, desc: testContext + "top navigation should NOT be allowed by a document sandboxed without 'allow-top-navigation'", addToAttempted: false}, "*");
+  window.close();
+}
+</script>
+<body onLoad="doStuff()">
+FAIL\
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_top_navigation_pass.html b/content/html/content/test/file_iframe_sandbox_top_navigation_pass.html
index 13b3acc596d..fe016ab2375 100644
--- a/content/html/content/test/file_iframe_sandbox_top_navigation_pass.html
+++ b/content/html/content/test/file_iframe_sandbox_top_navigation_pass.html
@@ -1,17 +1,18 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-</head>
-<script>
-function doStuff() {
-	window.opener.postMessage({ok: true, desc:  "top navigation should be allowed by a document sandboxed with 'allow-top-navigation'"}, "*");
-	window.close();
-}
-</script>
-<body onLoad="doStuff()">
-PASS
-</body>
-</html>
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<script>
+function doStuff() {
+  var testContext = unescape(location.search.substring(1));
+  window.opener.postMessage({ok: true, desc: testContext + "top navigation should be allowed by a document sandboxed with 'allow-top-navigation'"}, "*");
+  window.close();
+}
+</script>
+<body onLoad="doStuff()">
+PASS
+</body>
+</html>
diff --git a/content/html/content/test/file_iframe_sandbox_window_navigation_fail.html b/content/html/content/test/file_iframe_sandbox_window_navigation_fail.html
new file mode 100644
index 00000000000..f8e3c83ce81
--- /dev/null
+++ b/content/html/content/test/file_iframe_sandbox_window_navigation_fail.html
@@ -0,0 +1,20 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 838692</title>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+
+<script>
+function doStuff() {
+  var testContext = unescape(location.search.substring(1));
+  window.opener.postMessage({ok: false, desc: testContext + "a sandboxed document should not be able to navigate a window it hasn't opened.", addToAttempted: false}, "*");
+  window.close();
+}
+</script>
+
+<body onLoad="doStuff()">
+FAIL
+</body>
+</html>
diff --git a/content/html/content/test/test_iframe_sandbox_navigation.html b/content/html/content/test/test_iframe_sandbox_navigation.html
index 7bfc6cdbb89..32793ce3e92 100644
--- a/content/html/content/test/test_iframe_sandbox_navigation.html
+++ b/content/html/content/test/test_iframe_sandbox_navigation.html
@@ -1,234 +1,271 @@
-<!DOCTYPE HTML>
-<html>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=341604
-Implement HTML5 sandbox attribute for IFRAMEs
--->
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 341604 - navigation</title>
-  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-	<script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-</head>
-<script type="application/javascript">
-
-SimpleTest.expectAssertions(1, 2);
-
-/** Test for Bug 341604 - Implement HTML5 sandbox attribute for IFRAMEs **/
-/** Navigation tests **/
-
-SimpleTest.waitForExplicitFinish();
-// a postMessage handler that is used by sandboxed iframes without
-// 'allow-same-origin'/other windows to communicate pass/fail back to this main page.
-// it expects to be called with an object like {ok: true/false, desc:
-// <description of the test> which it then forwards to ok()
-window.addEventListener("message", receiveMessage, false);
-
-var testPassesReceived = 0;
-
-function receiveMessage(event) {
-  // this message is part of if_10's test
-  if (event.data.test == 'if_10') {
-    doIf10TestPart2();
-    return;
-  }
-
-  ok_wrapper(event.data.ok, event.data.desc);
-}
-
-var completedTests = 0;
-var passedTests = 0;
-
-function ok_wrapper(result, desc) {
-  ok(result, desc);
-
-  completedTests++;
-
-  if (result) {
-    passedTests++;
-  }
-
-  if (completedTests == 6) {
-    is(passedTests, 6, "There are 6 navigation tests that should pass");
-
-    SimpleTest.finish();
-  }
-}
-
-function doTest() {
-  // passes if good
-  // 1) A sandboxed iframe is allowed to navigate itself
-  // (done by file_iframe_sandbox_d_if1.html which has 'allow-scripts' and navigates to
-  // file_iframe_sandbox_navigation_pass.html).
-
-  // passes if good
-  // 2) A sandboxed iframe is allowed to navigate its children, even if they are sandboxed
-  // (done by file_iframe_sandbox_d_if2.html which has 'allow-scripts', it navigates a child
-  // iframe containing file_iframe_sandbox_navigation_start.html to file_iframe_sandbox_navigation_pass.html).
-
-  // fails if bad
-  // 3) A sandboxed iframe is not allowed to navigate its ancestor
-  // (done by file_iframe_sandbox_d_if4.html contained within file_iframe_sandbox_d_if3.html,
-  // it attempts to navigate file_iframe_sandbox_d_if3.html to file_iframe_sandbox_navigation_fail.html).
-
-  // fails if bad
-  // 4) A sandboxed iframe is not allowed to navigate its sibling
-  // (done by file_iframe_sandbox_d_if5.html which has 'allow scripts allow-same-origin'
-  // and attempts to navigate file_iframe_navigation_start.html contained in if_sibling on this
-  // page to file_iframe_sandbox_navigation_fail.html).
-
-  // fails if bad
-  // 5) When a link is clicked in a sandboxed iframe, the document navigated to is sandboxed
-  // the same as the original document and is not same origin with parent document
-  // (done by file_iframe_sandbox_d_if6.html which simulates a link click and navigates
-  // to file_iframe_sandbox_d_if7.html which attempts to call back into its parent).
-
-  // fails if bad
-  // 6) An iframe (if_8) has sandbox="allow-same-origin allow-scripts", the sandboxed document
-  // (file_iframe_sandbox_d_if_8.html) that it contains accesses its parent (this file) and removes
-  // 'allow-same-origin' and then triggers a reload.
-  // The document should not be able to access its parent (this file).
-
-  // fails if bad
-  // 7) An iframe (if_9) has sandbox="allow-same-origin allow-scripts", the sandboxed document
-  // (file_iframe_sandbox_d_if_9.html) that it contains accesses its parent (this file) and removes
-  // 'allow-scripts' and then triggers a reload.
-  // The document should not be able to run a script and access its parent (this file).
-
-  // passes if good
-  // 8) a document in an iframe with sandbox='allow-scripts' should have a different null
-  // principal in its original document than a document to which it navigates itself
-  // file_iframe_sandbox_d_if_10.html does this, co-ordinating with this page via postMessage
-  
-  // passes if good
-  // 9) a document (file_iframe_sandbox_d_if11.html in an iframe (if_11) with sandbox='allow-scripts'
-  // is navigated to file_iframe_sandbox_d_if12.html - when that document loads
-  // a message is sent back to this document, which adds 'allow-same-origin' to if_11 and then
-  // calls .back on it - file_iframe_sandbox_if12.html should be able to call back into this
-  // document - this is all contained in file_iframe_sandbox_d_if13.html which is opened in another
-  // tab so it has its own isolated session history
-  window.open("file_iframe_sandbox_d_if13.html");
-  
-  // open up the top navigation tests
-
-  // fails if bad
-  // 10) iframe with sandbox='allow-scripts' can NOT navigate top
-  // file_iframe_sandbox_e_if1.html contains file_iframe_sandbox_e_if6.html which
-  // attempts to navigate top
-  window.open("file_iframe_sandbox_e_if1.html");
-
-  // fails if bad
-  // 11) iframe with sandbox='allow-scripts' nested inside iframe with
-  // 'allow-top-navigation allow-scripts' can NOT navigate top
-  // file_iframe_sandbox_e_if2.html contains file_iframe_sandbox_e_if1.html which
-  // contains file_iframe_sandbox_e_if6.html which attempts to navigate top
-  window.open("file_iframe_sandbox_e_if2.html");
-
-  // passes if good
-  // 12) iframe with sandbox='allow-top-navigation allow-scripts' can navigate top
-  // file_iframe_sandbox_e_if3.html contains file_iframe_sandbox_e_if5.html which navigates top
-  window.open("file_iframe_sandbox_e_if3.html");
-
-  // passes if good
-  // 131) iframe with sandbox='allow-top-navigation allow-scripts' nested inside an iframe with
-  // 'allow-top-navigation allow-scripts' can navigate top
-  // file_iframe_sandbox_e_if4.html contains file_iframe_sandbox_e_if3.html which contains
-  // file_iframe_sandbox_e_if5.html which navigates top
-  window.open("file_iframe_sandbox_e_if4.html");
-}
-
-addLoadEvent(doTest);
-
-window.modified_if_8 = false;
-
-function reload_if_8() {
-  var if_8 = document.getElementById('if_8');
-  if_8.src = 'file_iframe_sandbox_d_if8.html';
-}
-
-function modify_if_8() {
-  // If this is the second time this has been called
-  // that's a failed test (allow-same-origin was removed
-  // the first time).
-  if (window.modified_if_8) {
-    ok_wrapper(false, "an sandboxed iframe from which 'allow-same-origin' was removed should not be able to access its parent");
-
-    // need to return here since we end up in an infinite loop otherwise
-    return;
-  }
-
-  var if_8 = document.getElementById('if_8');
-  window.modified_if_8 = true;
-
-  if_8.sandbox = 'allow-scripts';
-  sendMouseEvent({type:'click'}, 'a_button');
-}
-
-window.modified_if_9 = false;
-
-function reload_if_9() {
-  var if_9 = document.getElementById('if_9');
-  if_9.src = 'file_iframe_sandbox_d_if9.html';
-}
-
-function modify_if_9() {
-  // If this is the second time this has been called
-  // that's a failed test (allow-scripts was removed
-  // the first time).
-  if (window.modified_if_9) {
-    ok_wrapper(false, "an sandboxed iframe from which 'allow-scripts' should be removed should not be able to access its parent via a script");
-
-    // need to return here since we end up in an infinite loop otherwise
-    return;
-  }
-
-  var if_9 = document.getElementById('if_9');
-  window.modified_if_9 = true;
-
-  if_9.sandbox = 'allow-same-origin';
-
-  sendMouseEvent({type:'click'}, 'a_button2');
-}
-
-var firstPrincipal = "";
-var secondPrincipal;
-
-function doIf10TestPart1() {
-  if (firstPrincipal != "")
-    return;
-
-  // use SpecialPowers to get the principal of if_10.
-  // NB: We stringify here and below because special-powers wrapping doesn't
-  // preserve identity.
-  var if_10 = document.getElementById('if_10');
-  firstPrincipal = SpecialPowers.wrap(if_10).contentDocument.nodePrincipal.origin;
-  if_10.src = 'file_iframe_sandbox_d_if10.html';
-
-}
-function doIf10TestPart2() {
-  var if_10 = document.getElementById('if_10');
-  // use SpecialPowers to get the principal of if_10
-  secondPrincipal = SpecialPowers.wrap(if_10).contentDocument.nodePrincipal.origin;
-  ok_wrapper(firstPrincipal != secondPrincipal, "documents should NOT have the same principal if they are sandboxed without" +
-    " allow-same-origin and the first document is navigated to the second");
-}
-</script>
-<body>
-<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=341604">Mozilla Bug 341604</a> - Implement HTML5 sandbox attribute for IFRAMEs
-<p id="display"></p>
-<div id="content">
-<iframe sandbox="allow-scripts" id="if_1" src="file_iframe_sandbox_d_if1.html" height="10" width="10"></iframe>
-<iframe sandbox="allow-scripts" id="if_2" src="file_iframe_sandbox_d_if2.html" height="10" width="10"></iframe>
-<iframe sandbox="allow-scripts" id="if_3" src="file_iframe_sandbox_d_if3.html" height="10" width="10"></iframe>
-<iframe sandbox="allow_scripts allow-same-origin" id="if_5" src="file_iframe_sandbox_d_if5.html" height="10" width="10"></iframe>
-<iframe id="if_sibling" src="file_iframe_sandbox_navigation_start.html" height="10" width="10"></iframe>
-<iframe sandbox="allow_scripts" id="if_6" src="file_iframe_sandbox_d_if6.html" height="10" width="10"></iframe>
-<iframe sandbox="allow-same-origin allow-scripts" id="if_8" src="file_iframe_sandbox_d_if8.html" height="10" width="10"></iframe>
-<iframe sandbox="allow-same-origin allow-scripts" id="if_9" src="file_iframe_sandbox_d_if9.html" height="10" width="10"></iframe>
-<iframe sandbox="allow-scripts" id="if_10" src="file_iframe_sandbox_navigation_start.html" onload='doIf10TestPart1()' height="10" width="10"></iframe>
-</div>
-<input type='button' id="a_button" onclick='reload_if_8()'>
-<input type='button' id="a_button2" onclick='reload_if_9()'>
-</body>
-</html>
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=341604
+Implement HTML5 sandbox attribute for IFRAMEs
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604 - navigation</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<script type="application/javascript">
+/** Test for Bug 341604 - Implement HTML5 sandbox attribute for IFRAMEs **/
+/** Navigation tests Part 1**/
+
+SimpleTest.expectAssertions(1, 3);
+SimpleTest.waitForExplicitFinish();
+// a postMessage handler that is used by sandboxed iframes without
+// 'allow-same-origin'/other windows to communicate pass/fail back to this main page.
+// it expects to be called with an object like {ok: true/false, desc:
+// <description of the test> which it then forwards to ok()
+window.addEventListener("message", receiveMessage, false);
+
+var testPassesReceived = 0;
+
+function receiveMessage(event) {
+  // this message is part of if_10's test
+  if (event.data.test == 'if_10') {
+    doIf10TestPart2();
+  } else if (event.data == "test attempted") {
+    testAttempted();
+  } else {
+    ok_wrapper(event.data.ok, event.data.desc, event.data.addToAttempted);
+  }
+}
+
+// Open windows for tests to attempt to navigate later.
+var windowsToClose = new Array();
+windowsToClose.push(window.open("about:blank", "window_to_navigate"));
+windowsToClose.push(window.open("about:blank", "window_to_navigate2"));
+
+var attemptedTests = 0;
+var passedTests = 0;
+var totalTestsToPass = 8;
+var totalTestsToAttempt = 13;
+
+function ok_wrapper(result, desc, addToAttempted = true) {
+  ok(result, desc);
+
+  if (result) {
+    passedTests++;
+  }
+
+  if (addToAttempted) {
+    testAttempted();
+  }
+}
+
+// Added so that tests that don't register unless they fail,
+// can at least notify that they've attempted to run.
+function testAttempted() {
+  attemptedTests++;
+  if (attemptedTests == totalTestsToAttempt) {
+    // Make sure all tests have had a chance to complete.
+    setTimeout(function() {finish();}, 1000);
+  }
+}
+
+var finishCalled = false;
+
+function finish() {
+  if (!finishCalled) {
+    finishCalled = true;
+    is(passedTests, totalTestsToPass, "There are " + totalTestsToPass + " navigation tests that should pass");
+
+    for (var i = 0; i < windowsToClose.length; i++) {
+      windowsToClose[i].close();
+    }
+
+    SimpleTest.finish();
+  }
+}
+
+function checkTestsFinished() {
+  // If our own finish() has not been called, probably failed due to a timeout, so close remaining windows.
+  if (!finishCalled) {
+    for (var i = 0; i < windowsToClose.length; i++) {
+      windowsToClose[i].close();
+    }
+  }
+}
+
+function doTest() {
+  // passes if good
+  // 1) A sandboxed iframe is allowed to navigate itself
+  // (done by file_iframe_sandbox_d_if1.html which has 'allow-scripts' and navigates to
+  // file_iframe_sandbox_navigation_pass.html).
+
+  // passes if good
+  // 2) A sandboxed iframe is allowed to navigate its children, even if they are sandboxed
+  // (done by file_iframe_sandbox_d_if2.html which has 'allow-scripts', it navigates a child
+  // iframe containing file_iframe_sandbox_navigation_start.html to file_iframe_sandbox_navigation_pass.html).
+
+  // fails if bad
+  // 3) A sandboxed iframe is not allowed to navigate its ancestor
+  // (done by file_iframe_sandbox_d_if4.html contained within file_iframe_sandbox_d_if3.html,
+  // it attempts to navigate file_iframe_sandbox_d_if3.html to file_iframe_sandbox_navigation_fail.html).
+
+  // fails if bad
+  // 4) A sandboxed iframe is not allowed to navigate its sibling
+  // (done by file_iframe_sandbox_d_if5.html which has 'allow scripts allow-same-origin'
+  // and attempts to navigate file_iframe_navigation_start.html contained in if_sibling on this
+  // page to file_iframe_sandbox_navigation_fail.html).
+
+  // passes if good, fails if bad
+  // 5) When a link is clicked in a sandboxed iframe, the document navigated to is sandboxed
+  // the same as the original document and is not same origin with parent document
+  // (done by file_iframe_sandbox_d_if6.html which simulates a link click and navigates
+  // to file_iframe_sandbox_d_if7.html which attempts to call back into its parent).
+
+  // passes if good, fails if bad
+  // 6) An iframe (if_8) has sandbox="allow-same-origin allow-scripts", the sandboxed document
+  // (file_iframe_sandbox_d_if_8.html) that it contains accesses its parent (this file) and removes
+  // 'allow-same-origin' and then triggers a reload.
+  // The document should not be able to access its parent (this file).
+
+  // fails if bad
+  // 7) An iframe (if_9) has sandbox="allow-same-origin allow-scripts", the sandboxed document
+  // (file_iframe_sandbox_d_if_9.html) that it contains accesses its parent (this file) and removes
+  // 'allow-scripts' and then triggers a reload.
+  // The document should not be able to run a script and access its parent (this file).
+
+  // passes if good
+  // 8) a document in an iframe with sandbox='allow-scripts' should have a different null
+  // principal in its original document than a document to which it navigates itself
+  // file_iframe_sandbox_d_if_10.html does this, co-ordinating with this page via postMessage
+
+  // passes if good
+  // 9) a document (file_iframe_sandbox_d_if11.html in an iframe (if_11) with sandbox='allow-scripts'
+  // is navigated to file_iframe_sandbox_d_if12.html - when that document loads
+  // a message is sent back to this document, which adds 'allow-same-origin' to if_11 and then
+  // calls .back on it - file_iframe_sandbox_if12.html should be able to call back into this
+  // document - this is all contained in file_iframe_sandbox_d_if13.html which is opened in another
+  // tab so it has its own isolated session history
+  window.open("file_iframe_sandbox_d_if13.html");
+
+  // open up the top navigation tests
+
+  // fails if bad
+  // 10) iframe with sandbox='allow-scripts' can NOT navigate top
+  // file_iframe_sandbox_e_if1.html contains file_iframe_sandbox_e_if6.html which
+  // attempts to navigate top
+  windowsToClose.push(window.open("file_iframe_sandbox_e_if1.html"));
+
+  // fails if bad
+  // 11) iframe with sandbox='allow-scripts' nested inside iframe with
+  // 'allow-top-navigation allow-scripts' can NOT navigate top
+  // file_iframe_sandbox_e_if2.html contains file_iframe_sandbox_e_if1.html which
+  // contains file_iframe_sandbox_e_if6.html which attempts to navigate top
+  windowsToClose.push(window.open("file_iframe_sandbox_e_if2.html"));
+
+  // passes if good
+  // 12) iframe with sandbox='allow-top-navigation allow-scripts' can navigate top
+  // file_iframe_sandbox_e_if3.html contains file_iframe_sandbox_e_if5.html which navigates top
+  window.open("file_iframe_sandbox_e_if3.html");
+
+  // passes if good
+  // 13) iframe with sandbox='allow-top-navigation allow-scripts' nested inside an iframe with
+  // 'allow-top-navigation allow-scripts' can navigate top
+  // file_iframe_sandbox_e_if4.html contains file_iframe_sandbox_e_if3.html which contains
+  // file_iframe_sandbox_e_if5.html which navigates top
+  window.open("file_iframe_sandbox_e_if4.html");
+}
+
+addLoadEvent(doTest);
+
+window.modified_if_8 = false;
+
+function reload_if_8() {
+  var if_8 = document.getElementById('if_8');
+  if_8.src = 'file_iframe_sandbox_d_if8.html?onreload';
+}
+
+function modify_if_8() {
+  // If this is the second time this has been called
+  // that's a failed test (allow-same-origin was removed
+  // the first time).
+  if (window.modified_if_8) {
+    ok_wrapper(false, "an sandboxed iframe from which 'allow-same-origin' was removed should not be able to access its parent");
+
+    // need to return here since we end up in an infinite loop otherwise
+    return;
+  }
+
+  var if_8 = document.getElementById('if_8');
+  window.modified_if_8 = true;
+
+  if_8.sandbox = 'allow-scripts';
+  sendMouseEvent({type:'click'}, 'a_button');
+}
+
+window.modified_if_9 = false;
+
+function reload_if_9() {
+  var if_9 = document.getElementById('if_9');
+  if_9.src = 'file_iframe_sandbox_d_if9.html';
+}
+
+function modify_if_9() {
+  // If this is the second time this has been called
+  // that's a failed test (allow-scripts was removed
+  // the first time).
+  if (window.modified_if_9) {
+    ok_wrapper(false, "an sandboxed iframe from which 'allow-scripts' should be removed should not be able to access its parent via a script", false);
+
+    // need to return here since we end up in an infinite loop otherwise
+    return;
+  }
+
+  var if_9 = document.getElementById('if_9');
+  window.modified_if_9 = true;
+
+  if_9.sandbox = 'allow-same-origin';
+
+  sendMouseEvent({type:'click'}, 'a_button2');
+  testAttempted();
+}
+
+var firstPrincipal = "";
+var secondPrincipal;
+
+function doIf10TestPart1() {
+  if (firstPrincipal != "")
+    return;
+
+  // use SpecialPowers to get the principal of if_10.
+  // NB: We stringify here and below because special-powers wrapping doesn't
+  // preserve identity.
+  var if_10 = document.getElementById('if_10');
+  firstPrincipal = SpecialPowers.wrap(if_10).contentDocument.nodePrincipal.origin;
+  if_10.src = 'file_iframe_sandbox_d_if10.html';
+}
+
+function doIf10TestPart2() {
+  var if_10 = document.getElementById('if_10');
+  // use SpecialPowers to get the principal of if_10
+  secondPrincipal = SpecialPowers.wrap(if_10).contentDocument.nodePrincipal.origin;
+  ok_wrapper(firstPrincipal != secondPrincipal, "documents should NOT have the same principal if they are sandboxed without" +
+    " allow-same-origin and the first document is navigated to the second");
+}
+</script>
+<body onunload="checkTestsFinished()">
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=341604">Mozilla Bug 341604</a> - Implement HTML5 sandbox attribute for IFRAMEs
+<p id="display"></p>
+<div id="content">
+<iframe sandbox="allow-scripts" id="if_1" src="file_iframe_sandbox_d_if1.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-scripts" id="if_2" src="file_iframe_sandbox_d_if2.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-scripts" id="if_3" src="file_iframe_sandbox_d_if3.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-scripts allow-same-origin" id="if_5" src="file_iframe_sandbox_d_if5.html" height="10" width="10"></iframe>
+<iframe id="if_sibling" name="if_sibling" src="file_iframe_sandbox_navigation_start.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-scripts" id="if_6" src="file_iframe_sandbox_d_if6.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-same-origin allow-scripts" id="if_8" src="file_iframe_sandbox_d_if8.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-same-origin allow-scripts" id="if_9" src="file_iframe_sandbox_d_if9.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-scripts" id="if_10" src="file_iframe_sandbox_navigation_start.html" onload='doIf10TestPart1()' height="10" width="10"></iframe>
+</div>
+<input type='button' id="a_button" onclick='reload_if_8()'>
+<input type='button' id="a_button2" onclick='reload_if_9()'>
+</body>
+</html>
diff --git a/content/html/content/test/test_iframe_sandbox_navigation2.html b/content/html/content/test/test_iframe_sandbox_navigation2.html
new file mode 100644
index 00000000000..a4b2a4d8a38
--- /dev/null
+++ b/content/html/content/test/test_iframe_sandbox_navigation2.html
@@ -0,0 +1,187 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=341604
+Implement HTML5 sandbox attribute for IFRAMEs
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 341604 - navigation</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<script type="application/javascript">
+/** Test for Bug 341604 - Implement HTML5 sandbox attribute for IFRAMEs **/
+/** Navigation tests Part 2**/
+
+SimpleTest.expectAssertions(0);
+SimpleTest.waitForExplicitFinish();
+// a postMessage handler that is used by sandboxed iframes without
+// 'allow-same-origin'/other windows to communicate pass/fail back to this main page.
+// it expects to be called with an object like {ok: true/false, desc:
+// <description of the test> which it then forwards to ok()
+window.addEventListener("message", receiveMessage, false);
+
+var testPassesReceived = 0;
+
+function receiveMessage(event) {
+  if (event.data == "test attempted") {
+    testAttempted();
+  } else {
+    ok_wrapper(event.data.ok, event.data.desc, event.data.addToAttempted);
+  }
+}
+
+// Open windows for tests to attempt to navigate later.
+var windowsToClose = new Array();
+windowsToClose.push(window.open("about:blank", "window_to_navigate"));
+windowsToClose.push(window.open("about:blank", "window_to_navigate2"));
+
+var attemptedTests = 0;
+var passedTests = 0;
+var totalTestsToPass = 10;
+var totalTestsToAttempt = 13;
+
+function ok_wrapper(result, desc, addToAttempted = true) {
+  ok(result, desc);
+
+  if (result) {
+    passedTests++;
+  }
+
+  if (addToAttempted) {
+    testAttempted();
+  }
+}
+
+// Added so that tests that don't register unless they fail,
+// can at least notify that they've attempted to run.
+function testAttempted() {
+  attemptedTests++;
+  if (attemptedTests == totalTestsToAttempt) {
+    // Make sure all tests have had a chance to complete.
+    setTimeout(function() {finish();}, 1000);
+  }
+}
+
+var finishCalled = false;
+
+function finish() {
+  if (!finishCalled) {
+    finishCalled = true;
+    is(passedTests, totalTestsToPass, "There are " + totalTestsToPass + " navigation tests that should pass");
+
+    for (var i = 0; i < windowsToClose.length; i++) {
+      windowsToClose[i].close();
+    }
+
+    SimpleTest.finish();
+  }
+}
+
+function checkTestsFinished() {
+  // If our own finish() has not been called, probably failed due to a timeout, so close remaining windows.
+  if (!finishCalled) {
+    for (var i = 0; i < windowsToClose.length; i++) {
+      windowsToClose[i].close();
+    }
+  }
+}
+
+function doTest() {
+  // fails if bad
+  // 14) iframe with sandbox='allow-same-origin allow-scripts allow-top-navigation' should not
+  // be able to navigate another window (opened by another browsing context) using its name.
+  // file_iframe_sandbox_d_if14.html in if_14 attempts to navigate "window_to_navigate",
+  // which has been opened in preparation.
+
+  // fails if bad
+  // 15) iframe with sandbox='allow-scripts' should not be able to navigate top using its
+  // real name (instead of _top) as allow-top-navigation is not specified.
+  // file_iframe_sandbox_e_if7.html contains file_iframe_sandbox_e_if8.html, which
+  // attempts to navigate top by name.
+  windowsToClose.push(window.open("file_iframe_sandbox_e_if7.html"));
+
+  // fails if bad
+  // 16) iframe with sandbox='allow-same-origin allow-scripts allow-top-navigation' should not
+  // be able to use its parent's name (instead of _parent) to navigate it, when it is not top.
+  // (Note: this would apply to other ancestors that are not top as well.)
+  // file_iframe_sandbox_d_if15.html in if_15 contains file_iframe_sandbox_d_if16.html, which
+  // tries to navigate if_15 by its name (if_parent).
+
+  // passes if good, fails if bad
+  // 17) A sandboxed iframe is allowed to navigate itself using window.open().
+  // (Done by file_iframe_sandbox_d_if17.html which has 'allow-scripts' and navigates to
+  // file_iframe_sandbox_navigation_pass.html).
+
+  // passes if good, fails if bad
+  // 18) A sandboxed iframe is allowed to navigate its children with window.open(), even if
+  // they are sandboxed.  (Done by file_iframe_sandbox_d_if18.html which has 'allow-scripts',
+  // it navigates a child iframe to file_iframe_sandbox_navigation_pass.html).
+
+  // passes if good, fails if bad
+  // 19) A sandboxed iframe is not allowed to navigate its ancestor with window.open().
+  // (Done by file_iframe_sandbox_d_if20.html contained within file_iframe_sandbox_d_if19.html,
+  // it attempts to navigate file_iframe_sandbox_d_if19.html to file_iframe_sandbox_navigation_fail.html).
+
+  // passes if good, fails if bad
+  // 20) iframe with sandbox='allow-same-origin allow-scripts allow-top-navigation' should not
+  // be able to navigate another window (opened by another browsing context) using window.open(..., "<name>").
+  // file_iframe_sandbox_d_if14.html in if_14 attempts to navigate "window_to_navigate2",
+  // which has been opened in preparation, using window.open(..., "window_to_navigate2").
+
+  // passes if good, fails if bad
+  // 21) iframe with sandbox='allow-same-origin allow-scripts allow-top-navigation' should not
+  // be able to use its parent's name (not _parent) to navigate it using window.open(), when it is not top.
+  // (Note: this would apply to other ancestors that are not top as well.)
+  // file_iframe_sandbox_d_if21.html in if_21 contains file_iframe_sandbox_d_if22.html, which
+  // tries to navigate if_21 by its name (if_parent2).
+
+  // passes if good, fails if bad
+  // 22) iframe with sandbox='allow-top-navigation allow-scripts' can navigate top with window.open().
+  // file_iframe_sandbox_e_if9.html contains file_iframe_sandbox_e_if11.html which navigates top.
+  window.open("file_iframe_sandbox_e_if9.html");
+
+  // passes if good, fails if bad
+  // 23) iframe with sandbox='allow-top-navigation allow-scripts' nested inside an iframe with
+  // 'allow-top-navigation allow-scripts' can navigate top, with window.open().
+  // file_iframe_sandbox_e_if10.html contains file_iframe_sandbox_e_if9.html which contains
+  // file_iframe_sandbox_e_if11.html which navigates top.
+  window.open("file_iframe_sandbox_e_if10.html");
+
+  // passes if good, fails if bad
+  // 24) iframe with sandbox='allow-scripts' can NOT navigate top with window.open().
+  // file_iframe_sandbox_e_if12.html contains file_iframe_sandbox_e_if14.html which navigates top.
+  window.open("file_iframe_sandbox_e_if12.html");
+
+  // passes if good, fails if bad
+  // 25) iframe with sandbox='allow-scripts' nested inside an iframe with
+  // 'allow-top-navigation allow-scripts' can NOT navigate top, with window.open(..., "_top").
+  // file_iframe_sandbox_e_if13.html contains file_iframe_sandbox_e_if12.html which contains
+  // file_iframe_sandbox_e_if14.html which navigates top.
+  window.open("file_iframe_sandbox_e_if13.html");
+
+  // passes if good, fails if bad
+  // 26) iframe with sandbox='allow-scripts' should not be able to navigate top using its real name
+  // (not with _top e.g. window.open(..., "topname")) as allow-top-navigation is not specified.
+  // file_iframe_sandbox_e_if15.html contains file_iframe_sandbox_e_if16.html, which
+  // attempts to navigate top by name using window.open().
+  window.open("file_iframe_sandbox_e_if15.html");
+}
+
+addLoadEvent(doTest);
+</script>
+<body onunload="checkTestsFinished()">
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=341604">Mozilla Bug 341604</a> - Implement HTML5 sandbox attribute for IFRAMEs
+<p id="display"></p>
+<div id="content">
+<iframe sandbox="allow-same-origin allow-scripts allow-top-navigation" id="if_14" src="file_iframe_sandbox_d_if14.html" height="10" width="10"></iframe>
+<iframe id="if_15" name="if_parent" src="file_iframe_sandbox_d_if15.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-scripts" id="if_17" src="file_iframe_sandbox_d_if17.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-scripts" id="if_18" src="file_iframe_sandbox_d_if18.html" height="10" width="10"></iframe>
+<iframe sandbox="allow-scripts" id="if_19" src="file_iframe_sandbox_d_if19.html" height="10" width="10"></iframe>
+<iframe id="if_21" name="if_parent2" src="file_iframe_sandbox_d_if21.html" height="10" width="10"></iframe>
+</div>
+</body>
+</html>
diff --git a/testing/mochitest/b2g.json b/testing/mochitest/b2g.json
index dc801515ac3..4363d7a9f0b 100644
--- a/testing/mochitest/b2g.json
+++ b/testing/mochitest/b2g.json
@@ -75,6 +75,7 @@
     "content/html/content/test/test_fullscreen-api.html":"",
     "content/html/content/test/test_iframe_sandbox_inheritance.html":"",
     "content/html/content/test/test_iframe_sandbox_navigation.html":"",
+    "content/html/content/test/test_iframe_sandbox_navigation2.html":"multiple concurrent window.open()s fail on B2G",
     "content/html/content/test/test_formSubmission.html":"",
     "content/html/content/test/test_iframe_sandbox_plugins.html":"",
     "content/html/content/test/test_object_plugin_nav.html":"",
