diff --git a/install.rdf.in b/install.rdf.in
index 9272e08..9ccadcb 100644
--- a/install.rdf.in
+++ b/install.rdf.in
@@ -35,8 +35,8 @@
     <em:targetApplication> <!-- Firefox -->
       <Description>
         <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
-        <em:minVersion>3.5b4</em:minVersion>
-        <em:maxVersion>3.5.*</em:maxVersion>
+        <em:minVersion>3.5</em:minVersion>
+        <em:maxVersion>3.6a2pre</em:maxVersion>
       </Description>
     </em:targetApplication>