diff --git a/OxFF/components/OxFF.js b/OxFF/components/OxFF.js
index dfc42cb..634e823 100644
--- a/OxFF/components/OxFF.js
+++ b/OxFF/components/OxFF.js
@@ -361,6 +361,13 @@ OxFF.prototype = {
     });
   },
 }
-//4.0 only
-var NSGetFactory = XPCOMUtils.generateNSGetFactory([OxFF]);
+
+/**
+* XPCOMUtils.generateNSGetFactory was introduced in Mozilla 2 (Firefox 4).
+* XPCOMUtils.generateNSGetModule is for Mozilla 1.9.2 (Firefox 3.6).
+*/
+if (XPCOMUtils.generateNSGetFactory)
+    var NSGetFactory = XPCOMUtils.generateNSGetFactory([OxFF]);
+else
+    var NSGetModule = XPCOMUtils.generateNSGetModule([OxFF]);
 
diff --git a/OxFF/install.rdf b/OxFF/install.rdf
index e6a87be..c58aa3c 100644
--- a/OxFF/install.rdf
+++ b/OxFF/install.rdf
@@ -10,7 +10,7 @@
     <em:targetApplication>
       <Description>
        	<em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
-      	<em:minVersion>3.5</em:minVersion>
+      	<em:minVersion>3.6</em:minVersion>
       	<em:maxVersion>4.0b9</em:maxVersion>
       </Description>
     </em:targetApplication>