It's a fork of a extension I forgot the name of.
It basically detects link shorteners or other things and redirects you to the site that those type of stuff would redirect you to directly. It is crowdsourced so if you click on a link shortener, and it's not in the db, fastforward sends it to their db and helps others by redirecting them to the correct website the next time.
What's it used for? I mean, if the url redirects you to the original website, why should I get redirected by fast-forward instead of the original redirect?
Just a question to understand the use of it.
Thanks