Greasy Fork is available in English.
Adds small button next to shortened URLs (t.co/bit.ly/goo.gl) on Twitter and other sites that will replace the shortened URLs with their real locations and vice-versa. Useful for when you don't want to blindly click links.
YouTube and other websites are unusable with the userscript. Things take forever to load if they load at all, and it maxes out the processor of any device it's installed on.