status.modern.ie lists it as "Under Consideration" still for all browsers: <a href="http://dev.modern.ie/platform/status/moduleses6/?filter=f3e0000bf&search=module" rel="nofollow">http://dev.modern.ie/platform/status/moduleses6/?filter=f3e0...</a><p>SystemJS is a polyfill (and extender post-polyfill) that is great with support for plugins, transpiling ES6, and format detection for CommonJS, AMD, and even "Global" modules: <a href="https://github.com/systemjs/systemjs" rel="nofollow">https://github.com/systemjs/systemjs</a><p>Also recommended, is JSPM (<a href="http://jspm.io" rel="nofollow">http://jspm.io</a>) which is a package manager that utilizes the features of SystemJS and configures SystemJS to load NPM packages (akin to Browserify/Webpack) and Github repositories (somewhat similar to Bower).