One of my favorite browser extensions, Simplify [0], started its life as a userscript/userstyle. I've used Greasemonkey scripts to fix stupid (and in one case,

One of my favorite browser extensions, Simplify [0], started its life as a userscript/userstyle. I've used Greasemonkey scripts to fix stupid (and in one case, broken) things on mandatory intranet sites. They're invaluable. [0] https://github.com/leggett/simplify https://github.com/leggett/simplify