github.com
addons.mozilla.org
stylish.en.softonic.com
www.deviantart.com
support.mozilla.org
userstyles.org
www.technorms.com
userstyles.org
design.bi
Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for websites and even customize Firefox and other programs themselves.
alternativeto.net