Firefox 30 for developers

Changes for Web developers

Developer Tools

  • A Box Model Highlighter has been implemented (bugĀ 663778).
  • Anywhere a DOM node appears in the console output, it is highlighted when you hover over that console output (bugĀ 757866). Similarly all JS functions and objects are highlighted in the console output (bugĀ 584733). More information about the console improvement can be found in this blog post.
  • Support for Console.count() has been added (bugĀ 922208).

CSS

HTML

No change.

JavaScript

Interfaces/APIs/DOM

MathML

No change.

SVG

Audio/Video

  • On Linux, Gstreamer 1.0 is now supported (instead of 0.10) (bugĀ 806917).

Security

No change.

Changes for add-on and Mozilla developers

  • The interface nsIDOMWindowUtils now supports the Boolean attribute audioMuted and audioVolume, a float in the range [0.0 ,Ā  1.0], allowing to control the sound produced by a window (that is any tab or iframe). There is no UI for this, but is available to add-ons. (bugĀ 923247)

See also

Older versions