A collection of WebExtensions
All of this extensions are published in Mozilla Add-Ons
You can clone this repository and follow this guide(Spanish)
Copyright (c) 2014, Google (http://www.google.com/design/) uses the license at https://github.com/google/material-design-icons/blob/master/LICENSE
Copyright (c) 2014, Austin Andrews (http://materialdesignicons.com/) uses the license at https://github.com/Templarian/MaterialDesign/blob/master/LICENSE