diff --git a/browser/base/content/test/browser_inspector_domPanel.js b/browser/base/content/test/browser_inspector_domPanel.js
index e2e3eb26be8..4d3f80fcd7c 100644
--- a/browser/base/content/test/browser_inspector_domPanel.js
+++ b/browser/base/content/test/browser_inspector_domPanel.js
@@ -22,6 +22,7 @@
  *
  * Contributor(s):
  *   Rob Campbell <rcampbell@mozilla.com>
+ *   Mihai Șucan <mihai.sucan@gmail.com>
  *
  * Alternatively, the contents of this file may be used under the terms of
  * either the GNU General Public License Version 2 or later (the "GPL"), or
@@ -39,6 +40,7 @@
 
 let doc;
 let testGen;
+let newProperty;
 
 function createDocument()
 {
@@ -63,15 +65,26 @@ function createDocument()
 function nodeGenerator()
 {
   let body = doc.body;
+  newProperty = "rand" + Date.now();
+  body[newProperty] = Math.round(Math.random() * 100);
   InspectorUI.inspectNode(body);
   yield;
+
   let h1 = doc.querySelector("h1");
+  newProperty = "rand2" + Date.now();
+  h1[newProperty] = "test" + Math.random();
   InspectorUI.inspectNode(h1);
   yield;
+
   let first = doc.getElementById("first");
+  newProperty = "rand3" + Date.now();
+  first[newProperty] = null;
   InspectorUI.inspectNode(first);
   yield;
+
   let closing = doc.getElementById("closing");
+  newProperty = "bazbaz" + Date.now();
+  closing[newProperty] = false;
   InspectorUI.inspectNode(closing);
   yield;
 }
@@ -86,16 +99,48 @@ function runDOMTests()
   testGen.next();
 }
 
+function findInDOMPanel(aString)
+{
+  let treeView = InspectorUI.domTreeView;
+  let row;
+
+  for (let i = 0, n = treeView.rowCount; i < n; i++) {
+    row = treeView.getCellText(i, 0);
+    if (row && row.indexOf(aString) != -1) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
 function performTestComparisons(evt)
 {
   InspectorUI._log("performTestComparisons");
   if (evt.target.id != "highlighter-panel")
     return true;
 
-  ok(InspectorUI.selection, "selection");
+  let selection = InspectorUI.selection;
+
+  ok(selection, "selection");
   ok(InspectorUI.isDOMPanelOpen, "DOM panel is open?");
   ok(InspectorUI.highlighter.isHighlighting, "panel is highlighting");
-  ok(InspectorUI.domTreeView.rowCount > 0, "domBox has items");
+
+  let value = selection[newProperty];
+  if (typeof value == "string") {
+    value = '"' + value + '"';
+  }
+
+  ok(findInDOMPanel(newProperty + ': ' + value),
+    "domPanel shows the correct value for " + newProperty);
+
+  ok(findInDOMPanel('tagName: "' + selection.tagName + '"'),
+    "domPanel shows the correct tagName");
+
+  if (selection.id) {
+    ok(findInDOMPanel('id: "' + selection.id + '"'),
+      "domPanel shows the correct id");
+  }
 
   try {
     testGen.next();