Console对象提供对浏览器控制台的接入（如：Firefox 的 Web Console）。不同浏览器上它的工作方式是不一样的，但这里会介绍一些大都会提供的接口特性。

在Firefox下并有Firebug的支持下，我们经常使用console.log来在控制台记录一些信息。 但是这种做法在IE下会阻止JavaScript的执行（在Firefox下没有启用Firebug情况下也是一样），因为此时根本没有console对象存在。

Puppeteer is a JavaScript library which provides a high-level API to control Chrome or Firefox over the DevTools Protocol or WebDriver BiDi. Puppeteer runs in the headless (no visible UI) by default ...

Fancy html-based Javascript console output window Important: html-console-output is still in beta. More data-types visualization and prototype tracing will be added. Could also be buggy.

Mozilla developer Paul Rouget's "JSTerm" add-on makes Firefox's new built-in developer tools even more powerful for JavaScript coders.

Right on schedule, Mozilla released the latest stable version of its Firefox browser for Windows, Mac, Linux, and Android. Firefox 18 is the first stable version to feature Mozilla's new IonMonkey ...

Mozilla's open-source browser will receive new developer-friendly capabilities on the desktop and user-facing features on Android.

The introduction of a new module to Firefox 9's JavaScript engine will speed up its surfing performance by some margin.