if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] ; then

[ -f /usr/bin/firefox-esr ] || ln -s /usr/bin/icecat /usr/bin/firefox-esr

for HOMEDIR in $(grep :/home/ /etc/passwd |grep -v usbmux |grep -v syslog|cut -d : -f 6)
do
    [ -d $HOMEDIR/.mozilla/icecat ] && continue || true
    [ -d $HOMEDIR/.mozilla/firefox-esr ] || continue
    echo Linking $HOMEDIR/.mozilla/firefox-esr into $HOMEDIR/.mozilla/icecat
    ln -s $HOMEDIR/.mozilla/firefox-esr $HOMEDIR/.mozilla/icecat
done
fi
exit 0