Display host names of Cytrox spyware-hosting sites visited with Firefox

cytrox-check.sh

#!/usr/bin/env bash
#
# Display host names of Cytrox spyware-hosting sites visited with Firefox
# See: https://github.com/AmnestyTech/investigations/tree/master/2021-12-16_cytrox
#
# Diomidis Spinellis, May 2022
#

if [ -z "$1" ] ; then
  echo "Usage: $0 /path/to/Firefox/places.sqlite" 1>&2
  exit 1
fi
  
comm -12 <(
  sqlite3 "$1" 'select url from moz_places' | sed -nE 's|^https?://||;s|/.*||;/:/!p' | sort -u ) <(
  curl -sL https://raw.githubusercontent.com/AmnestyTech/investigations/master/2021-12-16_cytrox/domains.txt | sort)