diff -up ./install.rdf.old ./install.rdf
--- ./install.rdf.old	2015-08-10 12:18:15.283678778 -0500
+++ ./install.rdf	2015-08-10 12:19:55.110785366 -0500
@@ -15,6 +15,7 @@
         <em:optionsURL>chrome://https-everywhere/content/observatory-preferences.xul</em:optionsURL>
         <em:iconURL>chrome://https-everywhere/skin/https-everywhere.png</em:iconURL>
         <em:unpack>true</em:unpack> <!-- Required for Firefox 4 -->
+        <em:appManaged>true</em:appManaged> 
         <em:updateURL>https://www.eff.org/files/https-everywhere-update-2048.rdf</em:updateURL>
         <em:updateKey>MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6MR8W/galdxnpGqBsYbqOzQb2eyW15YFjDDEMI0ZOzt8f504obNs920lDnpPD2/KqgsfjOgw2K7xWDJIj/18xUvWPk3LDkrnokNiRkA3KOx3W6fHycKL+zID7zy+xZYBuh2fLyQtWV1VGQ45iNRp9+Zo7rH86cdfgkdnWTlNSHyTLW9NbXvyv/E12bppPcEvgCTAQXgnDVJ0/sqmeiijn9tTFh03aM+R2V/21h8aTraAS24qiPCz6gkmYGC8yr6mglcnNoYbsLNYZ69zF1XHcXPduCPdPdfLlzVlKK1/U7hkA28eG3BIAMh6uJYBRJTpiGgaGdPd7YekUB8S6cy+CQIDAQAB</em:updateKey>
         <!-- Firefox -->