Package: mozilla-devscripts

"mozilla-devscripts" package binaries on Debian:

/usr/bin/amo-changelog /usr/bin/dh_xul-ext /usr/bin/install-xpi /usr/bin/moz-version /usr/bin/xpi-pack /usr/bin/xpi-repack /usr/bin/xpi-unpack

You may install this package on Debian with apt-get install mozilla-devscripts