Random User-Agent - Automatically change the user agent after specified period of time to a randomly selected one, thus...
Stylebot - Change the appearance of websites instantly. Preview and install styles created by other users on stylebot.me
30 Seconds of Knowledge - Become a better developer, in every new tab.
Amino Editor - Amino is a Chrome browser extension for customizing web page presentation with user CSS.
User-Agent Switcher and Manager - spoofs browser's User-Agent string.
Stylus - User Styles Manager - Stylus is a userstyles editor and manager based on the source code of Stylish version 1.5.2.