Download Firefox 9 Stable With Improved JavaScript Performance

The rapid release of new versions of Firefox is still continuing. Last month Firefox 8 was released and now Firefox 9 Final is ready to be released. We have already talked about the new features being incorporated during Firefox 9 beta. The official release date of Firefox 9 Stable is 20th of December. But as always, the latest version of Firefox is already available of Mozilla FTP servers.

Firefox 9 Final about window

There are several stability enhancements and performance improvements in Firefox 9 Stable. The biggest improvement in Firefox 9 is the JavaScript engine. Now you can expect JavaScript to perform well over 30% faster than the previous versions of Firefox. This means that even the normal user will feel the difference in performance when using this new version of Firefox.

If you are used to using the websites that use JavaScript extensively like Gmail, Facebook, Twitter etc., Firefox 9 is a must have for you as these sites will load a lot faster than in other browsers like Google Chrome and Internet Explorer.

Let’s look at some performance graphs we have got from Favbrowser. These graphs will show you the comparison of all the popular browsers and their loading time.

Firefox 9 JavaScript benchmark

Click on the image to enlarge. These test have been taken from SunSpider JavaScript testing engine. You can see that Firefox 9 takes significantly less amount of time as compared to other browsers, Safari being the worst taking a huge amount of time rendering JavaScript.

Here are some of the highlights of major features included in Firefox 9 Final:

  • 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

Here are the download links of Firefox 9 from Mozilla’s official website: