diff --git a/extensions/firefox/install.rdf b/extensions/firefox/install.rdf
index 041e58934..eb683b96b 100644
--- a/extensions/firefox/install.rdf
+++ b/extensions/firefox/install.rdf
@@ -4,7 +4,7 @@
      xmlns:em="http://www.mozilla.org/2004/em-rdf#">
 
   <Description about="urn:mozilla:install-manifest">
-    <em:id>uriloader@pdf.js</em:id>
+    <em:id>viewer@pdf.js</em:id>
     <!-- PDFJS_LOCALIZED_METADATA -->
     <em:name>PDF Viewer</em:name>
     <em:version>PDFJSSCRIPT_VERSION</em:version>
@@ -14,7 +14,7 @@
       <Description>
        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
        <em:minVersion>10.0</em:minVersion>
-       <em:maxVersion>15.0a1</em:maxVersion>
+       <em:maxVersion>46.0a1</em:maxVersion>
      </Description>
     </em:targetApplication>
 
@@ -23,7 +23,7 @@
       <Description>
        <em:id>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</em:id>
        <em:minVersion>2.7</em:minVersion>
-       <em:maxVersion>2.12a1</em:maxVersion>
+       <em:maxVersion>2.39</em:maxVersion>
      </Description>
     </em:targetApplication>
 
@@ -32,7 +32,7 @@
       <Description>
        <em:id>{aa3c5121-dab2-40e2-81ca-7ea25febc110}</em:id>
        <em:minVersion>11.0</em:minVersion>
-       <em:maxVersion>16.0a1</em:maxVersion>
+       <em:maxVersion>46.0a1</em:maxVersion>
      </Description>
     </em:targetApplication>
 
diff --git a/extensions/firefox/update.rdf b/extensions/firefox/update.rdf
index b31051b5f..0dcc70922 100644
--- a/extensions/firefox/update.rdf
+++ b/extensions/firefox/update.rdf
@@ -3,7 +3,7 @@
 <RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
          xmlns:em="http://www.mozilla.org/2004/em-rdf#">
 
-  <RDF:Description about="urn:mozilla:extension:uriloader@pdf.js">
+  <RDF:Description about="urn:mozilla:extension:viewer@pdf.js">
     <em:updates>
       <RDF:Seq>
         <RDF:li>