In effort to develop next generation of Firefox 4, the Mozilla development team has made improvements to its Firefox 4 by released the fifth beta of Firefox 4. Similar to previous version, the new release includes lot of features, enhancements and improvements for desktop users and developers.



The Firefox 4 beta 5 includes the following new features and improvements:

  • Audio API – Changing the way media is integrated on the web: exposing the raw audio data housed within the video and audio elements in HTML5 makes it easy for developers to use JS to read and write audio data.
  • Direct2D Hardware Graphics Acceleration – Now enabled by default which allow Windows 7 users to experience super-fast graphics acceleration with Direct2D.
  • HSTS- Sites can now keep attackers from intercepting sensitive data while accessing the site by telling Firefox to automatically establish secure connections to their servers (https).
  • Firefox button has a new look for Windows Vista and Windows 7 users.
  • Support for HSTS security protocol allowing sites to insist that they only be loaded over SSL

The latest Firefox 4 beta 5 is now available for free download at Mozilla official site. Just head to the following URL to access official Firefox 4 beta 5 download:
Windows (English)- http://download.mozilla.org/?product=firefox-4.0b5&os=win&lang=en-US
Linux (English) – http://download.mozilla.org/?product=firefox-4.0b5&os=linux&lang=en-US
Mac OS X (English) – http://download.mozilla.org/?product=firefox-4.0b5&os=osx&lang=en-US

Other localized versions can be downloading from here.

Update: Firefox 4 Beta 7

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