NOTE: If you are using a vulnerable version of Mozilla, this will
send your cookies for the domain specified to my server. I don't
log them, but you don't know that.
Enter the domain you want to send me your cookies for. (eg. www.passport.com)
Note that "passport.com" won't work. ".passport.com" will. This
exploit can only steal domain cookies, not cookies set for a specific
host in the domain.