After reading the man pages for dpkg, I realize that the -l option does exist, it was simply the grep that didn't find anything. Here is the output:
pn mozilla-browser <none> (no description available) pn mozilla-firefox <none> (no description available) pn mozilla-firefox-dev <none> (no description available) un mozilla-firefox-dom-insp <none> (no description available) un mozilla-firefox-gnome-su <none> (no description available) pn mozilla-firefox-locale-a <none> (no description available) pn mozilla-firefox-locale-a <none> (no description available) pn mozilla-firefox-locale-a <none> (no description available) pn mozilla-firefox-locale-b <none> (no description available) pn mozilla-firefox-locale-c <none> (no description available) pn mozilla-firefox-locale-c <none> (no description available) un mozilla-firefox-locale-d <none> (no description available) pn mozilla-firefox-locale-d <none> (no description available) pn mozilla-firefox-locale-d <none> (no description available) pn mozilla-firefox-locale-d <none> (no description available) pn mozilla-firefox-locale-e <none> (no description available) ii mozilla-firefox-locale-e 1.5.0.1ubuntu6-2 Mozilla Firefox English language/region package pn mozilla-firefox-locale-e <none> (no description available) pn mozilla-firefox-locale-e <none> (no description available) pn mozilla-firefox-locale-e <none> (no description available) pn mozilla-firefox-locale-e <none> (no description available) pn mozilla-firefox-locale-f <none> (no description available) pn mozilla-firefox-locale-f <none> (no description available) pn mozilla-firefox-locale-f <none> (no description available) pn mozilla-firefox-locale-g <none> (no description available) pn mozilla-firefox-locale-g <none> (no description available) pn mozilla-firefox-locale-h <none> (no description available) pn mozilla-firefox-locale-h <none> (no description available) pn mozilla-firefox-locale-i <none> (no description available) pn mozilla-firefox-locale-j <none> (no description available) pn mozilla-firefox-locale-k <none> (no description available) pn mozilla-firefox-locale-m <none> (no description available) pn mozilla-firefox-locale-n <none> (no description available) pn mozilla-firefox-locale-n <none> (no description available) pn mozilla-firefox-locale-p <none> (no description available) pn mozilla-firefox-locale-p <none> (no description available) pn mozilla-firefox-locale-p <none> (no description available) pn mozilla-firefox-locale-p <none> (no description available) pn mozilla-firefox-locale-p <none> (no description available) pn mozilla-firefox-locale-r <none> (no description available) pn mozilla-firefox-locale-r <none> (no description available) pn mozilla-firefox-locale-s <none> (no description available) pn mozilla-firefox-locale-s <none> (no description available) pn mozilla-firefox-locale-s <none> (no description available) pn mozilla-firefox-locale-s <none> (no description available) pn mozilla-firefox-locale-t <none> (no description available) pn mozilla-firefox-locale-t <none> (no description available) pn mozilla-firefox-locale-u <none> (no description available) pn mozilla-firefox-locale-x <none> (no description available) pn mozilla-firefox-locale-z <none> (no description available) pn mozilla-firefox-locale-z <none> (no description available) pn mozilla-firefox-theme-rt <none> (no description available) ii firefox 1.5.dfsg+1.5.0.5-0ubuntu lightweight web browser based on Mozilla ii firefox-dbg 1.5.dfsg+1.5.0.5-0ubuntu Debugging information for firefox pn firefox-dev <none> (no description available) pn firefox-dom-inspector <none> (no description available) ii firefox-gnome-support 1.5.dfsg+1.5.0.5-0ubuntu Support for Gnome in Mozilla Firefox ii firefox-themes-ubuntu 0.4.5 Firefox themes matching the Ubuntu desktop look Hope this helps. -- Firefox will not start under Dapper 6.06 https://launchpad.net/bugs/60138 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs