How to install songbird *properly* on linux?

# cat > /usr/share/Songbird/launch.sh << EOF
#!/bin/sh
cd /usr/share/Songbird
./songbird
EOF
# chmod 755 /usr/share/Songbird/launch.sh
# ln -s /usr/share/Songbird/launch.sh /usr/bin/songbird

@zyqt: Yeah, I already had the idea, but SongBird depends of the firefox package, and on debian there is no firefox, only iceweasel.. How to?!

Log:
root@home:~/Desktop# dpkg -i songbird_1.0.0-0~getdeb1_i386.deb
Sélection du paquet songbird précédemment désélectionné.
(Lecture de la base de données... 169555 fichiers et répertoires déjà installés.)
Dépaquetage de songbird (à partir de songbird_1.0.0-0~getdeb1_i386.deb) ...
dpkg : des problèmes de dépendances empêchent la configuration de songbird :
songbird dépend de firefox ; cependant :
Le paquet firefox n'est pas installé.
dpkg : erreur de traitement de songbird (--install) :
problèmes de dépendances - laissé non configuré
Des erreurs ont été rencontrées pendant l'exécution :
songbird
(Sorry, it's in french, but you got it I think ;) )

@WW: Can you explain it a bit? Thanks!

@haxi:
assuming you extracted the Songbird tar.gz file from the official download link into /usr/share/Songbird the cat command until the second EOF creates the shellscript /usr/share/Songbird/launch.sh with the contents of line 2-4. The shellscript doesn't do anything else than what you were doing manually (cd into the directory and call ./songbird)

chmod makes the launch.sh shellscript executable (rwxr-xr-x)
and afterwards you symlink it to /usr/bin which makes it accessible from anywhere as /usr/bin is in the PATH-variable on most (if not all) Linux/UNIX distributions out there.

HTH - if not: http://tldp.org/LDP/abs/html/ or get a book about UNIX/Linux basics