Comment 2 for bug 476010

Hi
Well, I have kept a solution for my problem. (Excuse me if my english isn't very good)
I had this error:
update-alternatives: fitxategi amaiera edo errorea /var/lib/dpkg/alternatives/xulrunner irakurtzean update_mode-rako ()

In english +/-:
update-alternatives: file finished or error /var/lib/dpkg/alternatives/xulrunner while being reading for update_mode ()

I've gone to /var/lib/dpkg/alternatives/:
cd /var/lib/dpkg/alternatives/
and I've open the xulrunner file.
It was empty.
I have rename it:
sudo mv xulrunner xulrunner.old

and I've tried to remove xulrunner-1.9.1 and xulrunner-1.9 files.
sudo aptitude remove xulrunner-1.9 xulrunner-1.9.1

and it has worked fine!!

Solved the problem.