Code:
> pwd
/usr/ports/www/firefox
> sudo make deinstall
===> Deinstalling for www/firefox
pkg_info: package firefox-3.6.12,1 has no origin recorded
===> firefox not installed, skipping
> sudo make install
echo "@unexec /usr/local/bin/update-desktop-database > /dev/null || true" >> /usr/ports/www/firefox/work/plist
===> Generating temporary packing list
===> Checking if www/firefox already installed
pkg_info: package firefox-3.6.12,1 has no origin recorded
===> firefox-3.6.12,1 is already installed
You may wish to ``make deinstall'' and install this port again
by ``make reinstall'' to upgrade it properly.
If you really wish to overwrite the old port of www/firefox
without deleting it first, set the variable "FORCE_PKG_REGISTER"
in your environment or the "make install" command line.
*** Error code 1
Stop in /usr/ports/www/firefox.
*** Error code 1
> sudo pkg_info | grep firefox
pkg_info: show_file: can't open '+COMMENT' for reading
firefox-3.6.12,1 ???
> sudo pkg_delete -v firefox-3.6.12,1
pkg_delete: package 'firefox-3.6.12,1' doesn't have a prefix
pkg_delete: 1 package deletion(s) failed