Firefox addon cannot recognize new version on Update.rdf file - firefox

Question

I used McCoy tool to "Install" my install.rdf file and sign my update.rdf file.
On my Install.rdf file I have:
<?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="rdf:#$e2DK."
em:id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"
em:minVersion="4.0"
em:maxVersion="15.*" />
<RDF:Description RDF:about="urn:mozilla:install-manifest"
em:id="{ext-id}"
em:type="2"
em:name="Ext X"
em:version="1.0.4"
em:description="..."
em:creator="Bruno Leonardo Michels"
em:updateURL="http://www.example.com/dl/update.rdf"
em:bootstrap="false"
em:updateKey="xxx">
<em:targetApplication RDF:resource="rdf:#$e2DK."/>
</RDF:Description>
</RDF:RDF>
On my Update.rdf file I have:
<?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="rdf:#$D1abg"
em:version="1.0.4">
<em:targetApplication RDF:resource="rdf:#$G1abg"/>
</RDF:Description>
<RDF:Description RDF:about="rdf:#$G1abg"
em:id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"
em:minVersion="4.0"
em:maxVersion="15.*"
em:updateLink="http://www.example.com/dl/ext.xpi"
em:updateInfoURL="http://www.example.com/dl/ext.txt" />
<RDF:Description RDF:about="rdf:#$M1abg"
em:version="1.0.3">
<em:targetApplication RDF:resource="rdf:#$P1abg"/>
</RDF:Description>
<RDF:Description RDF:about="urn:mozilla:extension:{ext-id}"
em:signature="xxx">
<em:updates RDF:resource="rdf:#$C1abg"/>
</RDF:Description>
<RDF:Seq RDF:about="rdf:#$C1abg">
<RDF:li RDF:resource="rdf:#$D1abg"/>
<RDF:li RDF:resource="rdf:#$M1abg"/>
</RDF:Seq>
<RDF:Description RDF:about="rdf:#$P1abg"
em:id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"
em:minVersion="4.0"
em:maxVersion="15.*"
em:updateLink="http://www.example.com/dl/ext103.xpi"
em:updateInfoURL="http://www.example.com/dl/ext.txt" />
</RDF:RDF>
When I click "Find updates" Firefox requests the update.rdf url and retrieves the correct file with the correct version (1.0.4). But it doesn't do anything, doesn't show any updates, does not update... It just stay there with version 1.0.3...
Isn't the em:version what determines the addon version? What am I missing here?
To test I installed and signed a version 1.0.4 and changed the version to 1.0.3 installed and signed, so I have two versions with different numbers. I installed the version 1.0.3 and I am trying to get 1.0.4 through update.

Answer 1

As I am not using https I have to include the em:updateHash under em:updateLink on the update.rdf file. I used SHA1 generated from Hashtab.
em:updateHash="sha1:<hash>"
And after adding the hash you have to sign the file again.