Package: gdebi Version: 0.2.4debian1
Currently, I have gdebi installed on my Debian Sid system. While it is registered as a handler for the MIME type application/x-deb in the system, it is NOT the default application for GNOME/Iceweasel/etc to handle .deb files (File Roller is). It seems like if gdebi is installed on a system, it should make itself the default handler for .debs (in GNOME/Iceweasel/etc) on the system which it is installed.