Firefox 22 for developers

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Firefox 22 hasn't reached its feature freeze yet. New features will be added to it in the near future.

Firefox 22, based on Gecko 22, will ship in June 2013. This article provides information about the changes in this release that will affect developers. Nightly builds of what will become Firefox 22 are currently available on the Nightly channel.

Note: Items listed here are tentatively slated for Firefox 22; however, they may be held for a future release if testing shows they're not ready by the time Firefox 22 is due to ship. Please keep an eye on this page to stay up to date on the plans for Firefox 22.

Want to help document Firefox 22? See the list of bugs that need to be written about and pitch in!

Web开发者需要注意的变化

HTML

实现了HTML5中的<data>元素(bug 839371).
实现了range类型的<input>元素(<input type="range">) (bug 841948).

JavaScript

实现了ES6中的胖箭头函数(bug 846406).

DOM

不再支持XMLHttpRequest中的multipart属性和multipart/x-mixed-replac响应.这是一个Gecko独有的特性,从来没被标准化过.你可以使用Server-Sent Events, Web Sockets或者在progress事件中查看responseText属性的变化来实现同样的效果.
实现了Web Notifications (bug 782211).
FormData对象的append方法现在开始接受第三个参数filename(bug 690659).
移除了Node.isSupported方法(bug 801562).
实现了Mac OS X中的Ambient Light Events后端.

附加组件和Mozilla开发者需要注意的变化

移除了下面这些方法中的properties参数: nsITreeView.getCellProperties(), nsITreeView.getColumnProperties() and nsITreeView.getRowProperties() methods of nsITreeView. These methods should now return a string of space-separated property names. (bug 407956)

Firefox 22 for developers

Web开发者需要注意的变化

HTML

JavaScript

DOM

附加组件和Mozilla开发者需要注意的变化

相关链接

Older versions

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