They discontinued it because malware authors started using it because its easy to use, encrypted, and leaves no trail. https://www.zdnet.com/article/mozilla-su

They discontinued it because malware authors started using it because its easy to use, encrypted, and leaves no trail. https://www.zdnet.com/article/mozilla-suspends-firefox-send-service-while-it-addresses-malware-abuse/ https://www.zdnet.com/article/mozilla-suspends-firefox-send-...