case $zero in
    *fox-bin)
      export MOZILLA_FIVE_HOME=${MOZILLA_LIBDIR:-"/opt/firefox"}
      remote=$MOZILLA_FIVE_HOME/mozilla-xremote-client
      mozbin=$MOZILLA_FIVE_HOME/firefox-bin
      grepfor=Firefox-bin

  case $zero in
    *fox)
      export MOZILLA_FIVE_HOME=${MOZILLA_LIBDIR:-"/usr/lib/MozillaFirefox"}
      remote=$MOZILLA_FIVE_HOME/mozilla-xremote-client
      mozbin=$MOZILLA_FIVE_HOME/firefox-bin
      grepfor=Firefox-bin
      ;;