https://techcrunch.com/2020/09/17/mozilla-shutters-firefox-send-and-notes/

Mozilla today announced that it will shutter two products: Firefox Send, the free file transfer service it already put on hiatus in July, and Firefox Notes, its note-taking extension and mobile app.

Firefox Send launched in March 2019. At the time, Mozilla described it as a file-sharing tool with a focus on privacy. That privacy is also what is now doing it in. When it paused the service earlier this year, the company said it was investigating reports of abuse, especially from malware groups. At the time, Mozilla said it was looking into how it could improve its abuse reporting capabilities and that it would add a requirement that users have a Firefox Account.