https://tampermonkey.net , https://hibbard.eu/tampermonkey-tutorial/
tamper monkey
http://www.techradar.com/news/internet/the-beginner-s-guide-to-greasemonkey-scripting-598247
http://hayageek.com/greasemonkey-tutorial
in Coding, Tutorials Sep 11th 2013
9-11
https://medium.freecodecamp.com/applying-javascript-user-scripts-2e505643644d
