Check if the pagetitle was generated first..

minimo/chrome/content/rssview/rssload.js

@@ -103,10 +103,13 @@ blenderObject.prototype.apply = function () {
 		}
         this.targetElement.appendChild(htmlFragment.firstChild);
 
+        /*
+         * Updates the page title if pagetitle generated ID exists. 
+         * Check the rss_*.xml templates for additional details..
+         */
+        if(document.getElementById("pagetitle")) {
           document.title=document.getElementById("pagetitle").innerHTML;
-
-		//document.getElementById("loadmessage").style.display="none";
-
+        }
 	}
 }