https://send.firefox.com is dead.
“Firefox Send was a promising tool for encrypted file sharing... Unfortunately, some abusive users were beginning to use Send to ship malware and conduct spear phishing attacks. This summer we took Firefox Send offline to address this challenge.
In the intervening period, as we weighed the cost of our overall portfolio and strategic focus, we made the decision not to relaunch the service.”
https://blog.mozilla.org/blog/2020/09/17/update-on-firefox-send-and-firefox-notes/
