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本文介绍了一些在Firefox 56中的一些改进,这些改进会对开发者们产生影响。Firefox 56是当前Firefox的Beta版,预计在2017年9月26日正式发布。

针对网页开发者们的若干改变

开发者工具

  • 在CSS格检查器中显示以负号开始的行号(bug 1369942).

HTML

CSS

SVG

无修改.

JavaScript

  • The Intl API has been enabled on Firefox for Android ({{ bug }}).

APIs

New APIs

No changes.

DOM

DOM events

WebRTC

Canvas and WebGL

Security

No changes.

Plugins

No changes.

Other

  • Gecko now encodes URLs internally as punycode, to avoid URL encoding problems (see {{ bug }}, also see discussion in {{ bug }}).
  • Firefox on Windows and Mac OS X can now be made to run in headless mode using the -headless flag (see {{ bug }} and {{ bug }}).

Removals from the web platform

HTML

  • The <isindex> element has been removed from the HTML parser, and from form submission ({{ bug }}).
  • The <applet> element has been removed ({{ bug }}).

APIs

No changes.

SVG

No changes.

Changes for add-on and Mozilla developers

WebExtensions

No changes.

See also

Older versions

文档标签和贡献者

此页面的贡献者: wbamberg, dapenglang
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