Firefox maker Mozilla announced that the new Firefox 9 now is faster up to 20 to 30% execution speed by the way of a Javascript tweak. This allows users to browse content-rich pages with more ease and much faster. Besides that, Firefox 9 features improves swipe navigation for Mac systems besides better theme integration and loads of performance improvements and bug fixes.

Here’s a look at what’s new in Firefox 9:

The latest version of Firefox Beta has the following :

* Added Type Inference, significantly improving JavaScript performance

* Improved theme integration for Mac OS X Lion

* Added two finger swipe navigation for Mac OS X Lion

* Added support for querying Do Not Track status via JavaScript

* Added support for font-stretch

* Improved support for text-overflow

* Improved standards support for HTML5, MathML, and CSS

* Fixed several stability issues

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via Source.