<li> Check out a clean copy of fx-sync.</li>
<li> Export the repository to something we can import into mozilla-central with
<pre>cd fx-synctools/convert.sh</pre>
This creates a new repository next to the existing checkout called fx-sync.converted</li>
<li> Check out or update a copy of mozilla-central and do
<pre>cd mozilla-centralhg pull -f .../fx-sync.converted</pre>
</li>
<li> Merge the newly created head with