tenfourfox/toolkit/mozapps/extensions/test/browser/unsigned_hotfix.rdf

<?xml version="1.0" encoding="utf-8" ?>

<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:em="http://www.mozilla.org/2004/em-rdf#">

  <Description about="urn:mozilla:extension:hotfix@tests.mozilla.org">
    <em:updates>
      <Seq>
        <li>
          <Description>
            <em:version>1.0</em:version>
            <em:targetApplication>
              <Description>
                <em:id>toolkit@mozilla.org</em:id>
                <em:minVersion>0</em:minVersion>
                <em:maxVersion>*</em:maxVersion>
                <em:updateLink>https://example.com/browser/toolkit/mozapps/extensions/test/browser/unsigned_hotfix.xpi</em:updateLink>
              </Description>
            </em:targetApplication>
          </Description>
        </li>
      </Seq>
    </em:updates>
  </Description>

</RDF>