diff --git a/test/resources/firefox/extensions/special-powers@mozilla.org/install.rdf b/test/resources/firefox/extensions/special-powers@mozilla.org/install.rdf
index db8de988e..490d4ddaf 100644
--- a/test/resources/firefox/extensions/special-powers@mozilla.org/install.rdf
+++ b/test/resources/firefox/extensions/special-powers@mozilla.org/install.rdf
@@ -14,7 +14,7 @@
       <Description>
         <em:id>toolkit@mozilla.org</em:id>
        <em:minVersion>3.0</em:minVersion>
-       <em:maxVersion>7.0a1</em:maxVersion>
+       <em:maxVersion>13.0a1</em:maxVersion>
       </Description>
     </em:targetApplication>