Now that Firefox supports WebExtensions, it has become a lot easier to build browser extensions/addons for multiple browsers without duplicating the codebase. This project serves as a sensible starting point to help you get started. A foundation for creating browser extensions for Chrome, Opera & Firefox. Your changes to CSS, HTML & JS files will be relayed instantly without having to manually reload the extension. This ends up saving a lot of time and improving the developer experience. This comes with a gulp-based workflow that converts modern ES6 JavaScript and SCSS to JS/CSS. Scripts are transpired using Babel and bundled using Browserify. ...