diff --git a/extensions/xmlterm/ui/content/insertest.html b/extensions/xmlterm/ui/content/insertest.html
new file mode 100644
index 000000000000..7b67aaf51a00
--- /dev/null
+++ b/extensions/xmlterm/ui/content/insertest.html
@@ -0,0 +1,39 @@
+<!-- insertest.html: Tests insertion HTML fragments -->
+<html><head>
+<script language="JavaScript">
+   function runTest(aEvent) {
+      dump("runTest:\n");
+      netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+      var domselection = window._content.getSelection();
+      if (domselection && !domselection.isCollapsed && 
+          domselection.containsNode(aEvent.target,false))
+        {
+        var privateSelection = domselection.QueryInterface(Components.interfaces.nsISelectionPrivate);
+        dump("privatesel"+privateSelection+"\n");
+        var sel = privateSelection.QueryInterface(Components.interfaces.nsISelection);
+        dump("sel="+sel+"\n");
+        var range = sel.getRangeAt(0);
+        dump("range="+range+"\n");
+
+        var htmlFrag = '<SPAN onclick="' + "dump('ONCLICKED!');" + '"> <B>HTML fragment</B> </SPAN>';
+
+        var htmlFrag2 = '<DIV class="entry" name="entry" id="entry3"> <DIV class="output" name="output" id="output3"> <TABLE frame="none" border="0"> <COLGROUP colspan="5" width="1*"></COLGROUP> <TBODY> <TR> <TD> <SPAN class="directory" onclick="dump(event);"> chrome                </SPAN> </TD> <TD> <SPAN class="plainfile" onclick="dump(event);"> install.js                </SPAN> </TD> </TR> </TBODY> </TABLE> </DIV> </DIV>'
+
+        dump(htmlFrag2+"\n");
+
+        var docFrag = range.createContextualFragment(htmlFrag2);
+
+        dump("docFrag = "+docFrag+"\n");
+        dump("docFrag.firstChild = "+docFrag.firstChild+"\n");
+
+        var bodyElement = document.getElementById("bodyEl");
+
+        dump("bodyElement = "+bodyElement+"\n");
+
+        bodyElement.appendChild(docFrag.firstChild);
+      }
+   }
+</script>
+</head><body id="bodyEl">
+<SPAN class="test" onclick="return runTest(event);">INSERT FRAGMENT TEST<SPAN>
+</body></html>
diff --git a/extensions/xmlterm/ui/content/styletest.html b/extensions/xmlterm/ui/content/styletest.html
new file mode 100644
index 000000000000..9bbfa995ffe8
--- /dev/null
+++ b/extensions/xmlterm/ui/content/styletest.html
@@ -0,0 +1,21 @@
+<!-- xpctest.html: Tests DOM access to style sheets -->
+<html><head>
+<style type="text/css">
+    SPAN.test { color: green }
+</style>
+<script language="JavaScript">
+   function onLoad()
+   {
+      var sheet = window.document.styleSheets[0];
+      dump("sheet = "+sheet+"\n");
+
+      var rule = sheet.cssRules[0];
+      dump("rule = "+rule+"\n");
+
+      var selectorText = rule.selectorText;
+      dump("selectorText = '"+selectorText+"' (correct value is 'SPAN.test')\n");
+   }
+</script>
+</head><body onload="return onLoad();">
+<SPAN class="test">STYLE TEST<SPAN>
+</body></html>
diff --git a/extensions/xmlterm/ui/content/xpctest.html b/extensions/xmlterm/ui/content/xpctest.html
new file mode 100644
index 000000000000..4a9f4cb4db41
--- /dev/null
+++ b/extensions/xmlterm/ui/content/xpctest.html
@@ -0,0 +1,7 @@
+<!-- xpctest.html: Tests XPCONNECT access -->
+<html><head>
+<script language="JavaScript">
+   //netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+   dump("compMgr="+Components.manager+"\n");
+</script>
+</head><body>XPCTEST</body></html>
