wget -q https://packages.mozilla.org/apt/repo-signing-key.gpg -O- | tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null &&\
gpg -n -q --import --import-options import-show /etc/apt/keyrings/packages.mozilla.org.asc | awk '/pub/{getline; gsub(/^ +| +$/,""); if($0 == "35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3") print "\nThe key fingerprint matches ("$0").\n"; else print "\nVerification failed: the fingerprint ("$0") does not match the expected one.\n"}'&&\
echo"deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main"| tee -a /etc/apt/sources.list.d/mozilla.list > /dev/null &&\
echo'\
Package: * \
Pin: origin packages.mozilla.org \
Pin-Priority: 1000 \
'| tee /etc/apt/preferences.d/mozilla > /dev/null &&\