diff --git a/chrome/content/overlay.xul b/chrome/content/overlay.xul
index de4e496..a79338d 100644
--- a/chrome/content/overlay.xul
+++ b/chrome/content/overlay.xul
@@ -6,9 +6,7 @@
     id="zoteroshortdoi"
     xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
 
-    <script
-        type="application/x-javascript"
-        src="chrome://zoteroshortdoi/content/scripts/zoteroshortdoi.js"/>
+    <script src="chrome://zoteroshortdoi/content/scripts/zoteroshortdoi.js"/>
     <script src="chrome://zotero/content/include.js"/>
 
     <stringbundleset id="stringbundleset">
diff --git a/install.rdf b/install.rdf
index b6b82ff..4c34065 100644
--- a/install.rdf
+++ b/install.rdf
@@ -3,11 +3,6 @@
     xmlns:em="http://www.mozilla.org/2004/em-rdf#"
     xmlns:NC="http://home.netscape.com/NC-rdf#"
     xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
-    <RDF:Description
-        RDF:about="rdf:#$x61SL3"
-        em:id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"
-        em:minVersion="2.0"
-        em:maxVersion="20.*"/>
     <RDF:Description
         RDF:about="urn:mozilla:install-manifest"
         em:id="zoteroshortdoi@wiernik.org"
@@ -19,7 +14,6 @@
         em:homepageURL="https://github.org/bwiernik/zotero-shortdoi"
         em:updateURL="https://raw.githubusercontent.com/bwiernik/zotero-shortdoi/master/update.rdf">
         <em:type>2</em:type>
-        <em:targetApplication RDF:resource="rdf:#$x61SL3"/>
         <em:targetApplication>
             <Description>
                 <em:id>zotero@chnm.gmu.edu</em:id>