bittorrent GUI error

[ASCI_Blue]

ubtitles.torrent
Traceback (most recent call last):
File "/usr/bin/btdownloadgui.py", line 268, in next
open_new('http://bitconjurer.org/BitTorrent/donate.html')
File "/usr/lib/python2.2/webbrowser.py", line 46, in open_new
get().open(url, 1)
File "/usr/lib/python2.2/webbrowser.py", line 38, in get
raise Error("could not locate runnable browser&quot
Error: could not locate runnable browser

I think I know the problem, but I don't know what to change to fix it. At console if I type mozilla it tells me it can't find it, what is the name of the file that I can put mozilla in?

[trickster]

run-mozilla.sh