--- a/layout/inspector/tests/test_bug462787.html
+++ b/layout/inspector/tests/test_bug462787.html
@@ -16,19 +16,18 @@ https://bugzilla.mozilla.org/show_bug.cg
 </div>
 <pre id="test">
 <script type="application/javascript">
 
 /** Test for Bug 462787 **/
 
 function do_test() {
   const INVALID_POINTER = 0x80004003;
-  
-  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
-  var utils = Components.classes["@mozilla.org/inspector/dom-utils;1"]
+
+  var utils = SpecialPowers.Cc["@mozilla.org/inspector/dom-utils;1"]
                              .getService(Components.interfaces.inIDOMUtils);
   try {
     utils.getCSSStyleRules(null); 
     ok(false, "expected an exception"); 
   }
   catch(e) { is(e.result, INVALID_POINTER, "got the expected exception"); }
 
   try {

--- a/layout/inspector/tests/test_bug462789.html
+++ b/layout/inspector/tests/test_bug462789.html
@@ -18,19 +18,18 @@ https://bugzilla.mozilla.org/show_bug.cg
 <script type="application/javascript">
 
 /** Test for Bug 462789 **/
 
 function do_test() {
   const ERROR_FAILURE = 0x80004005;
   const DOCUMENT_NODE_TYPE = 9;
 
-  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
-  var utils = Components.classes["@mozilla.org/inspector/dom-utils;1"]
-                             .getService(Components.interfaces.inIDOMUtils);
+  var utils = SpecialPowers.Cc["@mozilla.org/inspector/dom-utils;1"]
+                             .getService(SpecialPowers.Ci.inIDOMUtils);
 
   var iframe = document.getElementById("bug462789_iframe");
   var docElement = iframe.contentDocument.documentElement;
   var body = docElement.children[1];
   var rule = iframe.contentDocument.styleSheets[0].cssRules[0];
   var text = body.firstChild;
 
   try {
@@ -58,17 +57,17 @@ function do_test() {
     is(res.nodeType, DOCUMENT_NODE_TYPE, "getParentForNode(docElement, true)");
     res = utils.getParentForNode(text, true);
     is(res.tagName, "BODY", "getParentForNode(text, true)");
   }
   catch(e) { ok(false, "got an unexpected exception:" + e); }
 
   try {
     var res = utils.getBindingURLs(docElement);
-    is(res instanceof Components.interfaces["nsIArray"], true, "getBindingURLs result type");
+    is(SpecialPowers.unwrap(res) instanceof SpecialPowers.Ci["nsIArray"], true, "getBindingURLs result type");
     is(res.length, 0, "getBindingURLs array length");
   }
   catch(e) { ok(false, "got an unexpected exception:" + e); }
 
   try {
     utils.getContentState(docElement);
     ok(true, "Should not throw"); 
   }

--- a/layout/inspector/tests/test_bug522601.xhtml
+++ b/layout/inspector/tests/test_bug522601.xhtml
@@ -25,32 +25,31 @@ https://bugzilla.mozilla.org/show_bug.cg
 <pre id="test">
 <script type="application/javascript">
 <![CDATA[
 
 /** Test for Bug 522601 **/
 SimpleTest.waitForExplicitFinish();
 
 function testFunc(walker, func, expectedNode, str) {
-  var oldCurrent = walker.currentNode;
-  var newNode = walker[func]();
+  var oldCurrent = SpecialPowers.unwrap(walker.currentNode);
+  var newNode = SpecialPowers.unwrap(walker[func]());
   is(newNode, expectedNode, "Unexpected node after " + str);
-  is(walker.currentNode, newNode ? newNode : oldCurrent,
+  is(SpecialPowers.unwrap(walker.currentNode), newNode ? newNode : oldCurrent,
      "Unexpected current node after " + str);
 }
 
 addLoadEvent(function() {
-  netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
   var walkerNonAnon =
-    Components.classes["@mozilla.org/inspector/deep-tree-walker;1"]
-              .createInstance(Components.interfaces.inIDeepTreeWalker);
+    SpecialPowers.Cc["@mozilla.org/inspector/deep-tree-walker;1"]
+              .createInstance(SpecialPowers.Ci.inIDeepTreeWalker);
   walkerNonAnon.init($("display"), NodeFilter.SHOW_ALL);
   walkerNonAnon.showAnonymousContent = false;
 
-  is(walkerNonAnon.currentNode, $("display"), "Unexpected non-anon root");
+  is(SpecialPowers.unwrap(walkerNonAnon.currentNode), $("display"), "Unexpected non-anon root");
   testFunc(walkerNonAnon, "nextNode", $("s").previousSibling,
            "step to some text");
   testFunc(walkerNonAnon, "nextNode", $("s"), "step to span");
   testFunc(walkerNonAnon, "nextNode", $("s").firstChild, "step to span text");
   testFunc(walkerNonAnon, "nextNode", $("s").nextSibling, "step to more text");
   testFunc(walkerNonAnon, "nextNode", $("b"), "step to bold");
   testFunc(walkerNonAnon, "nextNode", $("b").firstChild, "step to bold text");
   testFunc(walkerNonAnon, "nextNode", $("i1"), "step to first italic");
@@ -82,17 +81,17 @@ addLoadEvent(function() {
            "step previousSibling to span");
   testFunc(walkerNonAnon, "previousSibling", $("s").previousSibling,
            "step previousSibling to display first child");
   testFunc(walkerNonAnon, "previousSibling", null,
            "step previousSibling past end");
 
   // Move the walker over to the end
   while (walkerNonAnon.nextNode()) { /* do nothing */ }
-  is(walkerNonAnon.currentNode, $("i2").firstChild, "unexpected last node");
+  is(SpecialPowers.unwrap(walkerNonAnon.currentNode), $("i2").firstChild, "unexpected last node");
   testFunc(walkerNonAnon, "previousNode", $("i2"), "step back to second italic");
   testFunc(walkerNonAnon, "previousNode", $("i1").nextSibling,
            "step back to more bold text");
   testFunc(walkerNonAnon, "previousNode", $("i1").firstChild,
            "step back to first italic text");
   testFunc(walkerNonAnon, "previousNode", $("i1"), "step back to first italic");
   testFunc(walkerNonAnon, "previousNode", $("b").firstChild,
            "step back to bold text");
@@ -105,22 +104,22 @@ addLoadEvent(function() {
   testFunc(walkerNonAnon, "previousNode", $("display"),
            "step back to root");
   testFunc(walkerNonAnon, "previousNode", null,
            "step back past root");
 
   var anonDiv = document.getAnonymousNodes($("display"))[0];
 
   var walkerAnon =
-    Components.classes["@mozilla.org/inspector/deep-tree-walker;1"]
-              .createInstance(Components.interfaces.inIDeepTreeWalker);
+    SpecialPowers.Cc["@mozilla.org/inspector/deep-tree-walker;1"]
+              .createInstance(SpecialPowers.Ci.inIDeepTreeWalker);
   walkerAnon.showAnonymousContent = true;
   walkerAnon.init($("display"), NodeFilter.SHOW_ALL);
 
-  is(walkerAnon.currentNode, $("display"), "Unexpected anon root");
+  is(SpecialPowers.unwrap(walkerAnon.currentNode), $("display"), "Unexpected anon root");
   testFunc(walkerAnon, "nextNode", anonDiv,
            "step to anonymous div");
   testFunc(walkerAnon, "nextNode", $("s").previousSibling,
            "step to some text (anon)");
   testFunc(walkerAnon, "nextNode", $("s").nextSibling, "step to more text (anon)");
   testFunc(walkerAnon, "nextNode", $("b"), "step to bold (anon)");
   testFunc(walkerAnon, "nextNode", $("b").firstChild, "step to bold text (anon)");
   testFunc(walkerAnon, "nextNode", $("i1"), "step to first italic (anon)");

--- a/layout/inspector/tests/test_bug536379-2.html
+++ b/layout/inspector/tests/test_bug536379-2.html
@@ -13,20 +13,18 @@ https://bugzilla.mozilla.org/show_bug.cg
 <body>
 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=536379">Mozilla Bug 536379</a>
 <p id="display"></p>
 <pre id="test">
 <script type="application/javascript">
 
 /** Test for Bug 536379 **/
 
-netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
-
-const CI = Components.interfaces;
-const CC = Components.classes;
+const CI = SpecialPowers.Ci;
+const CC = SpecialPowers.Cc;
 
 var domUtils =
   CC["@mozilla.org/inspector/dom-utils;1"].getService(CI.inIDOMUtils);
 var rules = domUtils.getCSSStyleRules(document.getElementById("display"));
 var firstPRule =
   rules.GetElementAt(rules.Count() - 2).QueryInterface(CI.nsIDOMCSSStyleRule);
 firstPRule.style.removeProperty("color");
 ok(true, "should not crash");

--- a/layout/inspector/tests/test_bug536379.html
+++ b/layout/inspector/tests/test_bug536379.html
@@ -13,35 +13,33 @@ https://bugzilla.mozilla.org/show_bug.cg
 <body>
 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=536379">Mozilla Bug 536379</a>
 <p id="display"></p>
 <pre id="test">
 <script type="application/javascript">
 
 /** Test for Bug 536379 **/
 
-netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
-
-const CI = Components.interfaces;
-const CC = Components.classes;
+const CI = SpecialPowers.Ci;
+const CC = SpecialPowers.Cc;
 
 var domUtils =
   CC["@mozilla.org/inspector/dom-utils;1"].getService(CI.inIDOMUtils);
 var rules = domUtils.getCSSStyleRules(document.getElementById("display"));
 var firstPRule =
   rules.GetElementAt(rules.Count() - 2).QueryInterface(CI.nsIDOMCSSStyleRule);
 firstPRule.style.removeProperty("color");
 ok(true, "should not crash");
 
 var links = document.getElementsByTagName("link");
 is(links.length, 3, "links.length");
-is(firstPRule.parentStyleSheet, links[1].sheet, "sheet match for first P rule");
+is(SpecialPowers.unwrap(firstPRule.parentStyleSheet), links[1].sheet, "sheet match for first P rule");
 var secondPRule =
   rules.GetElementAt(rules.Count() - 1).QueryInterface(CI.nsIDOMCSSStyleRule);
-is(secondPRule.parentStyleSheet, links[2].sheet, "sheet match for second P rule");
+is(SpecialPowers.unwrap(secondPRule.parentStyleSheet), links[2].sheet, "sheet match for second P rule");
 is(links[1].href, links[2].href, "links should have same href");
 isnot(links[1].sheet, links[2].sheet, "links should have different sheets");
 isnot(firstPRule, secondPRule, "rules should be different");
 isnot(firstPRule.cssText, secondPRule.cssText, "text should be different since property was removed from one");
 
 </script>
 </pre>
 </body>

--- a/layout/inspector/tests/test_bug557726.html
+++ b/layout/inspector/tests/test_bug557726.html
@@ -35,31 +35,30 @@ https://bugzilla.mozilla.org/show_bug.cg
 
 <div id="div1">
   text with :before, :after, and :first-letter pseudo-elements
 </div>
 
 <script type="application/javascript">
 
 /** Test for Bug 557726 **/
-netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 
 function getSelectors (rules) {
   var styleElement = document.getElementById("pseudo-style");
   var selectors = [];
   for (var i = 0; i < rules.Count(); i++) {
-    var rule = rules.GetElementAt(i).QueryInterface(Components.interfaces.nsIDOMCSSStyleRule);
-    if (rule.parentStyleSheet.ownerNode == styleElement) // no user agent rules
+    var rule = rules.GetElementAt(i).QueryInterface(SpecialPowers.Ci.nsIDOMCSSStyleRule);
+    if (SpecialPowers.unwrap(rule.parentStyleSheet.ownerNode) == styleElement) // no user agent rules
       selectors.push(rule.selectorText);
   }
   return selectors;
 }
 
-var domUtils = Components.classes["@mozilla.org/inspector/dom-utils;1"]
-               .getService(Components.interfaces.inIDOMUtils);
+var domUtils = SpecialPowers.Cc["@mozilla.org/inspector/dom-utils;1"]
+               .getService(SpecialPowers.Ci.inIDOMUtils);
 
 var div = document.getElementById("div1");
 
 /* empty or missing pseudo-element argument */
 var selectors = getSelectors(domUtils.getCSSStyleRules(div));
 is(selectors.length, 1, "psuedo-element argument should be optional");
 is(selectors[0], "#div1", "should only have the non-pseudo element rule");
 

--- a/layout/inspector/tests/test_bug609549.xhtml
+++ b/layout/inspector/tests/test_bug609549.xhtml
@@ -25,42 +25,41 @@ https://bugzilla.mozilla.org/show_bug.cg
 <pre id="test">
 <script type="application/javascript">
 <![CDATA[
 
 /** Test for Bug 609549 **/
 SimpleTest.waitForExplicitFinish();
 
 addLoadEvent(function() {
-  netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
-  var domUtils = Components.classes["@mozilla.org/inspector/dom-utils;1"].
-                   getService(Components.interfaces.inIDOMUtils);
+  var domUtils = SpecialPowers.Cc["@mozilla.org/inspector/dom-utils;1"].
+                   getService(SpecialPowers.Ci.inIDOMUtils);
   ok("getChildrenForNode" in domUtils, "domUtils has no getChildrenForNode");
-  var withoutAnons = domUtils.getChildrenForNode($("bound"), false);
+  var withoutAnons = SpecialPowers.unwrap(domUtils.getChildrenForNode($("bound"), false));
 
   is(withoutAnons.length, $("bound").childNodes.length,
      "withoutAnons should be the same length as childNodes");
   is(withoutAnons[0], $("p"), "didn't get paragraph - without anons");
   is(withoutAnons[1], $("sandwiched"),
      "didn't get sandwiched span - without anons");
 
-  var withAnons = domUtils.getChildrenForNode($("bound"), true);
+  var withAnons = SpecialPowers.unwrap(domUtils.getChildrenForNode($("bound"), true));
 
   is(withAnons.length, 4, "bad withAnons.length");
   is(withAnons[0].getAttribute("anonid"), "box-A",
      "didn't get anonymous box-A");
   is(withAnons[1].getAttribute("anonid"), "box-B",
      "didn't get anonymous box-B");
   is(withAnons[2].getAttribute("anonid"), "box-C",
      "didn't get anonymous box-C");
   is(withAnons[3].id, "p", "didn't get paragraph - with anons");
 
   var bKids = domUtils.getChildrenForNode(withAnons[1], true);
   is(bKids.length, 1, "bKids.length is bad");
-  is(bKids[0], $("sandwiched"),
+  is(SpecialPowers.unwrap(bKids[0]), $("sandwiched"),
      "didn't get sandwiched span inserted into box-B");
 
   SimpleTest.finish();
 });
 
 ]]>
 </script>
 </pre>

--- a/layout/inspector/tests/test_bug806192.html
+++ b/layout/inspector/tests/test_bug806192.html
@@ -7,18 +7,17 @@ https://bugzilla.mozilla.org/show_bug.cg
   <title>Test for Bug 806192</title>
   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
 </head>
 <body>
 <pre id="test">
 <script type="application/javascript">
 
-netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
-const utils = Components.classes["@mozilla.org/inspector/dom-utils;1"]
+const utils = SpecialPowers.Cc["@mozilla.org/inspector/dom-utils;1"]
 .getService(Components.interfaces.inIDOMUtils);
 
 try {
     var res = utils.getBindingURLs({});
     ok(false, "didn't get error");
 }
 catch(e) { ok(true, "got expected exception"); }
 </script>

--- a/layout/inspector/tests/test_isinheritableproperty.html
+++ b/layout/inspector/tests/test_isinheritableproperty.html
@@ -8,19 +8,18 @@ https://bugzilla.mozilla.org/show_bug.cg
   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
 </head>
 <body>
 <pre id="test">
 <script type="application/javascript">
 
 function do_test() {
-  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
-  var utils = Components.classes["@mozilla.org/inspector/dom-utils;1"]
-    .getService(Components.interfaces.inIDOMUtils);
+  var utils = SpecialPowers.Cc["@mozilla.org/inspector/dom-utils;1"]
+    .getService(SpecialPowers.Ci.inIDOMUtils);
 
   is(utils.isInheritedProperty("font-size"), true, "font-size is inherited.");
 
   is(utils.isInheritedProperty("min-width"), false, "min-width is not inherited.");
 
   is(utils.isInheritedProperty("font"), true, "shorthand font property is inherited.");
 
   is(utils.isInheritedProperty("border"), false, "shorthand border property not inherited.");