diff --git a/extras/firefox_extension/install.rdf b/extras/firefox_extension/install.rdf
index 94c093da94..42cb31173a 100644
--- a/extras/firefox_extension/install.rdf
+++ b/extras/firefox_extension/install.rdf
@@ -14,7 +14,7 @@
       <Description>
         <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id> <!-- firefox -->
         <em:minVersion>3.0</em:minVersion>
-        <em:maxVersion>5.*</em:maxVersion>
+        <em:maxVersion>17.*</em:maxVersion>
       </Description>
     </em:targetApplication>
   </Description>