harmonize default search paths for systemwide mozilla extensions and
plugins to ${LOCALBASE}/lib/mozilla/{plugins,extensions}. The
install.rdf files take care anyway of telling with which mozapp an xpi
extension is compatible.
3.5/thunderbird 3 codebase. See for details:
http://www.seamonkey-project.org/releases/seamonkey2.0.4/
Backing up your profile before upgrading is recommended..
Update also largely based on www/firefox35 port.
Tested on i386/amd64/sparc64/powerpc by myself and on alpha by naddy@
ok naddy@