update.xml

<?xml version="1.0" encoding="UTF-8"?>
<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:SStart@Off.JustOff">
    <em:updates>
      <RDF:Seq>
        <RDF:li>
          <RDF:Description>
            <em:version>2.1.6</em:version>
            <em:targetApplication>
              <RDF:Description>
                <em:id>{8de7fcbb-c55c-4fbe-bfc5-fc555c87dbc4}</em:id>
                <em:minVersion>24.0</em:minVersion>
                <em:maxVersion>29.*</em:maxVersion>
                <em:updateLink>https://github.com/JustOff/speed-start/releases/download/2.1.6/speed-start-2.1.6.xpi</em:updateLink>
              </RDF:Description>
            </em:targetApplication>
            <em:targetApplication>
              <RDF:Description>
                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
                <em:minVersion>24.0</em:minVersion>
                <em:maxVersion>56.*</em:maxVersion>
                <em:updateLink>https://github.com/JustOff/speed-start/releases/download/2.1.6/speed-start-2.1.6.xpi</em:updateLink>
              </RDF:Description>
            </em:targetApplication>
            <em:targetApplication>
              <RDF:Description>
                <em:id>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</em:id>
                <em:minVersion>2.24</em:minVersion>
                <em:maxVersion>2.*</em:maxVersion>
                <em:updateLink>https://github.com/JustOff/speed-start/releases/download/2.1.6/speed-start-2.1.6.xpi</em:updateLink>
              </RDF:Description>
            </em:targetApplication>
            <em:targetApplication>
              <RDF:Description>
                <em:id>{a3210b97-8e8a-4737-9aa0-aa0e607640b9}</em:id>
                <em:minVersion>1.0.0a1</em:minVersion>
                <em:maxVersion>1.*</em:maxVersion>
                <em:updateLink>https://github.com/JustOff/speed-start/releases/download/2.1.6/speed-start-2.1.6.xpi</em:updateLink>
              </RDF:Description>
            </em:targetApplication>
          </RDF:Description>
        </RDF:li>
      </RDF:Seq>
    </em:updates>
  </RDF:Description>
</RDF:RDF>