Well it reeks a bit because from the article
"Mozilla could have opted for implementing support for secure FTP in Firefox; a bug was filed 19 years ago to introduce support for SFTP in Firefox but nothing ever came out of it."
"Mozilla could have opted for implementing support for secure FTP in Firefox; a bug was filed 19 years ago to introduce support for SFTP in Firefox but nothing ever came out of it."
FTP made some sense to have in a browser because it supported unauthenticated downloads.
SFTP, as a protocol which runs over SSH, basically requires authentication. (You could conceivably set up an SSH server to allow authentication against a "guest" user, but that gives security folks the heebie-jeebies.) So it doesn't really make sense to link to an SFTP resource in a web context, making it very low value to support in a browser.
That almost always happens over the git protocol or git+http, not git+ssh.