diff --git a/dom/tests/mochitest/whatwg/file_bug500328_1.html b/dom/tests/mochitest/whatwg/file_bug500328_1.html
index 07fce8983a2e..f0ef793b53b0 100644
--- a/dom/tests/mochitest/whatwg/file_bug500328_1.html
+++ b/dom/tests/mochitest/whatwg/file_bug500328_1.html
@@ -6,10 +6,6 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=500328
 -->
 <head>
 <title>test 1</title>
-  <style>
-    a           { fill:blue; }
-    a:visited   { fill:purple; }
-  </style>
 </head>
 <body onload="load();" onpopstate="popstate(event);">
 <script type="application/javascript">
diff --git a/dom/tests/mochitest/whatwg/test_bug500328.html b/dom/tests/mochitest/whatwg/test_bug500328.html
index 0b36c0127538..95889febb385 100644
--- a/dom/tests/mochitest/whatwg/test_bug500328.html
+++ b/dom/tests/mochitest/whatwg/test_bug500328.html
@@ -32,8 +32,8 @@ var iframeCw = iframe.contentWindow;
 var iframe2 = document.getElementById("iframe2");
 var iframe2Cw = iframe2.contentWindow;
 
-const unvisitedColor = "rgb(0, 0, 238)";
-const visitedColor = "rgb(85, 26, 139)";
+var unvisitedColor;
+var visitedColor;
 
 var gCallbackOnIframeLoad = false;
 var gCallbackOnPopState = false;
@@ -176,10 +176,25 @@ function runTest() {
   /**
    * PRELIMINARY:
    *  1. Clear the popstate counter
+   *  2. Get the visited and unvisited link colors.
    */
 
   clearPopStateCounter();
 
+  // Set the link's href to somewhere we haven't been so we can get the
+  // unvisited link color.
+  var rand = Date.now() + "-" + Math.random();
+  $("link").href = rand;
+  unvisitedColor = getColor($("link"));
+  statusMsg("Unvisited color is " + unvisitedColor);
+
+  // Set the link's href to our current location so we can get the visited link
+  // color.
+  $("link").href = document.location;
+  visitedColor = getColor($("link"));
+  statusMsg("Visited color is " + visitedColor);
+  isnot(visitedColor, unvisitedColor, "visited/unvisited link colors are the same?");
+
   // The URL of file_bug500328_1.html on http://localhost:8888
   var innerLoc;
 
@@ -288,7 +303,6 @@ function runTest() {
   statusMsg("Done loading file_bug500328_1.html for the second time.");
 
   var ifLink = iframeCw.document.getElementById("link-anchor1");
-  var rand = Date.now() + "-" + Math.random();
   ifLink.href = rand;
 
   // Poll the document until the link has the correct color, or this test times
