as a way of managing the menu content at least [for thunderbird, adjust as necessary for claws]
$ sudo rm /usr/share/indicators/messages/applications/evolution $ sudo bash -c "echo /usr/share/applications/thunderbird.desktop > /usr/share/indicators/messages/applications/thunderbird"
as a way of managing the menu content at least [for thunderbird, adjust as necessary for claws]
$ sudo rm /usr/share/ indicators/ messages/ applications/ evolution applications/ thunderbird. desktop > /usr/share/ indicators/ messages/ applications/ thunderbird"
$ sudo bash -c "echo /usr/share/