Index: build/chrome/ui.js
==================================================================
--- build/chrome/ui.js
+++ build/chrome/ui.js
@@ -3,21 +3,33 @@
 function displayCerts(htmlObject, certs) {
 	var html = "";
 	var idx;
 	var cert;
 	var certObj;
+
+	if (certs.length == 0) {
+		htmlObject.innerHTML = "<b>No certificates found</b>";
+
+		return;
+	}
 
 	certObj = new X509;
 
-	html += "<ol>";
+	html += "<ol type=\"1\">";
 
 	for (idx = 0; idx < certs.length; idx++) {
 		cert = certs[idx];
 
 		certObj.hex = BAtohex(new Uint8Array(cert.certificate));
 
-		html += "\t<li>" + certObj.getSubjectString() + "</li>";
+		html += "\t<li>";
+		html += "\t\t" + certObj.getSubjectString() + ":" + certObj.getSerialNumberHex();
+		html += "\t\t<ol type=\"a\">";
+		html += "\t\t\t<li>Serial Number: " + certObj.getSerialNumberHex() + "</li>";
+		html += "\t\t\t<li>Usage: " + X509.getExtKeyUsageString(certObj.hex) + "</li>";
+		html += "\t\t</ol>";
+		html += "\t</li>";
 	}
 
 	html += "</ol>";
 
 	delete certObj;