diff --git a/toolkit/mozapps/extensions/src/nsAddonRepository.js b/toolkit/mozapps/extensions/src/nsAddonRepository.js
index 2f71dc58adc6..62b6f54f4bc1 100644
--- a/toolkit/mozapps/extensions/src/nsAddonRepository.js
+++ b/toolkit/mozapps/extensions/src/nsAddonRepository.js
@@ -51,7 +51,7 @@ const PREF_GETADDONS_GETSEARCHRESULTS    = "extensions.getAddons.search.url";
 
 const XMLURI_PARSE_ERROR  = "http://www.mozilla.org/newlayout/xml/parsererror.xml";
 
-const API_VERSION = "1";
+const API_VERSION = "1.1";
 
 function AddonSearchResult() {
 }
@@ -242,10 +242,10 @@ AddonRepository.prototype = {
       return;
     var vc = Cc["@mozilla.org/xpcom/version-comparator;1"].
              getService(Ci.nsIVersionComparator);
-    var apps = tags[0].getElementsByTagName("name");
+    var apps = tags[0].getElementsByTagName("appID");
     var i = 0;
     while (i < apps.length) {
-      if (apps[i].textContent.toLowerCase() == app.name.toLowerCase()) {
+      if (apps[i].textContent == app.ID) {
         var minversion = apps[i].parentNode.getElementsByTagName("min_version")[0].textContent;
         var maxversion = apps[i].parentNode.getElementsByTagName("max_version")[0].textContent;
         if ((vc.compare(minversion, app.version) > 0) ||
diff --git a/toolkit/mozapps/extensions/test/unit/data/test_bug404024.xml b/toolkit/mozapps/extensions/test/unit/data/test_bug404024.xml
index 5c9d37bc0ece..a720fcda2ebd 100644
--- a/toolkit/mozapps/extensions/test/unit/data/test_bug404024.xml
+++ b/toolkit/mozapps/extensions/test/unit/data/test_bug404024.xml
@@ -10,6 +10,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -29,6 +30,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>2</min_version>
         <max_version>2</max_version>
@@ -47,6 +49,7 @@
     <compatible_applications>
       <application>
         <name>Firefox</name>
+        <appID>unknown@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>2</min_version>
         <max_version>2</max_version>
@@ -66,6 +69,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -86,6 +90,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -105,6 +110,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -123,6 +129,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -146,6 +153,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
diff --git a/toolkit/mozapps/extensions/test/unit/data/test_bug417606.xml b/toolkit/mozapps/extensions/test/unit/data/test_bug417606.xml
index 6fce27015ff6..9852b1457bf4 100644
--- a/toolkit/mozapps/extensions/test/unit/data/test_bug417606.xml
+++ b/toolkit/mozapps/extensions/test/unit/data/test_bug417606.xml
@@ -10,6 +10,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -28,6 +29,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>2</min_version>
         <max_version>2</max_version>
@@ -45,6 +47,7 @@
     <compatible_applications>
       <application>
         <name>Firefox</name>
+        <appID>unknown@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>2</min_version>
         <max_version>2</max_version>
@@ -63,6 +66,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -82,6 +86,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -100,6 +105,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -117,6 +123,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -139,6 +146,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
diff --git a/toolkit/mozapps/extensions/test/unit/data/test_bug424262.xml b/toolkit/mozapps/extensions/test/unit/data/test_bug424262.xml
index 33485c24733e..f0d63a2f3fb6 100644
--- a/toolkit/mozapps/extensions/test/unit/data/test_bug424262.xml
+++ b/toolkit/mozapps/extensions/test/unit/data/test_bug424262.xml
@@ -11,6 +11,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -31,6 +32,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -51,6 +53,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -71,6 +74,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -91,6 +95,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -111,6 +116,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -131,6 +137,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>
@@ -151,6 +158,7 @@
     <compatible_applications>
       <application>
         <name>XPCShell</name>
+        <appID>xpcshell@tests.mozilla.org</appID>
         <application_id>1</application_id>
         <min_version>1</min_version>
         <max_version>1</max_version>