diff --git a/extensions/firefox/update.rdf b/extensions/firefox/update.rdf
index f14ec142b..cd81a2e78 100644
--- a/extensions/firefox/update.rdf
+++ b/extensions/firefox/update.rdf
@@ -9,6 +9,7 @@
         <RDF:li>
           <RDF:Description>
             <em:version>PDFJSSCRIPT_VERSION</em:version>
+            <!-- Firefox -->
             <em:targetApplication>
               <RDF:Description>
                 <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
@@ -18,6 +19,16 @@
                 <em:updateLink>https://raw.githubusercontent.com/mozilla/pdf.js/gh-pages/extensions/firefox/pdf.js.xpi</em:updateLink>
               </RDF:Description>
             </em:targetApplication>
+            <!-- Android -->
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{aa3c5121-dab2-40e2-81ca-7ea25febc110}</em:id>
+                <em:minVersion>10.0</em:minVersion>
+                <em:maxVersion>46.0</em:maxVersion>
+                <!-- Use the raw link for updates so we we can use SSL. -->
+                <em:updateLink>https://raw.githubusercontent.com/mozilla/pdf.js/gh-pages/extensions/firefox/pdf.js.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
           </RDF:Description>
         </RDF:li>
       </RDF:Seq>