install.rdf

<?xml version="1.0"?>
<RDF:RDF 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="urn:mozilla:install-manifest"
                   em:id="nostalgy@alain.frisch"
                   em:name="Nostalgy"
                   em:version="0.2.33"
                   em:creator="Alain Frisch"
                   em:description="Adds shortcuts to change folder, move message, with folder completion"
                   em:homepageURL="http://alain.frisch.fr/soft_mozilla.html"
                   em:optionsURL="chrome://nostalgy/content/edit_prefs.xul"
                   em:aboutURL="chrome://nostalgy/content/about.xul">

    <em:targetApplication>
      <!-- Thunderbird -->
      <Description>
        <em:id>{3550f703-e582-4d05-9a08-453d09bdfdc6}</em:id>
        <em:minVersion>31.0</em:minVersion>
        <em:maxVersion>31.*</em:maxVersion>
      </Description>
    </em:targetApplication>
    <em:targetApplication>
      <!-- SeaMonkey -->
      <Description>
        <em:id>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</em:id>
        <em:minVersion>1.1</em:minVersion>
        <em:maxVersion>2.9.*</em:maxVersion>
      </Description>
    </em:targetApplication>
    <em:targetApplication>
      <!-- Postbox -->
      <Description>
        <em:id>postbox@postbox-inc.com</em:id>
        <em:minVersion>1.0b13</em:minVersion>
        <em:maxVersion>3.*</em:maxVersion>
      </Description>
    </em:targetApplication>
  </RDF:Description>
</RDF:RDF>