http://akira.matrix.jp/?p=558 # wget -O- -q http://mozilla.debian.net/archive.asc | gpg --import # gpg --check-sigs --fingerprint --keyring /usr/share/keyrings/debian-keyring.gpg 06C4AE2A # gpg --export -a 06C4AE2A | apt-key add - # cat /e…