The new Firefox DevTools are powerful, flexible, and best of all, hackable. This includes a best-in-class JavaScript debugger, which can target multiple browsers and is built in React and Ember.
新款 Firefox 开发者工具更加强大、灵活、好用。其中包括一流的 JavaScript 调试器，可以面向多款浏览器调试，并内置 React 和 Ember。