Comment 63 for bug 861664

(In reply to stefan.blumenrath from comment #59)
> (In reply to Justin Scott [:fligtar] from comment #58)
> > Since it hasn't been linked here yet, in addition to the fix going into
> > Firefox, we've also created a workaround to recover any hidden add-ons.
>
> Great, unfortunaly this won't work in SeaMonkey. I don't dare just to change
> the install.rdf - would that help?
>
> (I've lost AB, but was able to reinstall, after reinstalling some filters
> disappeared).

My guess is that the following, placed where it belongs in install.rdf, ought to be enough:

      <!-- SeaMonkey version -->
        <em:targetApplication>
            <Description>
                <em:id>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</em:id>
                <em:minVersion>2.4a1</em:minVersion>
                <em:maxVersion>2.7.*</em:maxVersion>
            </Description>
        </em:targetApplication>

but Mossop knows better than me if there's no other subtle caveat.