diff --git a/chrome/content/mailhops.js b/chrome/content/mailhops.js
index 71c3b6c..b9fba58 100644
--- a/chrome/content/mailhops.js
+++ b/chrome/content/mailhops.js
@@ -18,7 +18,8 @@ var mailHops =
   container:	null,
   isLoaded:     false,
   map:			'goog',
-  unit:			'mi'
+  unit:			'mi',
+  appVersion:	'MailHops Thunderbird 0.3'
 }
 
 mailHops.startLoading = function()
@@ -254,7 +255,7 @@ mailHops.lookup = function(route){
  var city;
  var state;
  
- xmlhttp.open("GET", 'http://api.mailhops.com/v1/lookup/?tb&route='+route.toString(),true);
+ xmlhttp.open("GET", 'http://api.mailhops.com/v1/lookup/?tb&app='+mailHops.appVersion+'&r='+route.toString(),true);
  xmlhttp.onreadystatechange=function() {
   if (xmlhttp.readyState==4) {
    var data = nativeJSON.decode(xmlhttp.responseText);
@@ -296,7 +297,7 @@ function addCommas(nStr)
 function launchMap(route)
 {
 	//launch mailhops api map
-	var openwin = window.openDialog('http://api.mailhops.com/v1/map/?tb&m='+mailHops.map+'&u='+mailHops.unit+'&r='+route,"MailHops",'toolbar=no,location=no,directories=no,menubar=yes,scrollbars=yes,close=yes,width=730,height=330');
+	var openwin = window.openDialog('http://api.mailhops.com/v1/map/?tb&app='+mailHops.appVersion+'&m='+mailHops.map+'&u='+mailHops.unit+'&r='+route,"MailHops",'toolbar=no,location=no,directories=no,menubar=yes,scrollbars=yes,close=yes,width=730,height=330');
 	openwin.focus();
 }
 
diff --git a/install.rdf b/install.rdf
index 1747d39..f696e82 100644
--- a/install.rdf
+++ b/install.rdf
@@ -8,7 +8,7 @@
 		<em:type>2</em:type>
 
 		<em:name>MailHops</em:name>
-		<em:version>0.2</em:version>
+		<em:version>0.3</em:version>
 		<em:description>MailHops maps the route an email took to get to you.</em:description>
 		
 		<em:iconURL>chrome://mailhops/content/images/mailhops32.png</em:iconURL>