non-ubuntu packages don't appear in 'Add/Remove Applications'

Projet:Trisquel
Version:8.0
Composant:Gnome
Catégorie:Tâche
Priorité:normal
Attribué:Non assigné
Statut:active
Description

IceCat and Abrowser, for instance, are missing. I believe that this is because /usr/share/app-install/desktop has not been updated from Ubuntu.