Fix typo in message.
diff --git a/js/ccnxProtocol/content/ccnxToolbar.js b/js/ccnxProtocol/content/ccnxToolbar.js
index a187599..00b76b5 100644
--- a/js/ccnxProtocol/content/ccnxToolbar.js
+++ b/js/ccnxProtocol/content/ccnxToolbar.js
@@ -2,7 +2,7 @@
 
 function CcnxToolbarGetLatest(event){
   if (window._content.document.location.protocol != "ccnx:") {
-    alert("The addres must start with ccnx");
+    alert("The address must start with ccnx");
     return;
   }