Firefox 21 Beta 7 Now Available for Download

Firefox 21 Beta 7 is now available for download. Firefox 21 adds the Three-state options for Do Not Track (DNT). This version also allow user to restore removed thumbnails on New Tab Page.

Release Highlights
Firefox 21 includes the following:
  • More Do Not Track Options: Do Not Track includes three options "Do Track," "Do Not Track" and "no preference" to better represent user’s choice to opt-in or opt-out of online tracking. To access the Do Not Track options and indicate your preference click on "preferences" then "privacy."
  • Restore thumbnails on new tab page: If you close a tab thumbnail on the new tab page there will be an option to "undo" and restore your thumbnail.

Note: Firefox 21 Final is scheduled to be released on May 14, 2013.

Download Firefox 21 Beta 7:
The links in this section correspond to files available for this download. Download the files appropriate for you.

Firefox 21 Beta (Running on Windows 8)

Note: Please do NOT use this Firefox Beta release on production machines. A Firefox Beta release should be considered for evaluation and testing purposes.

What's new features in Firefox 21 Beta?
Firefox 21 Beta has the following changes:

New:
  • Enhanced Three-state UI for Do Not Track (DNT)
  • Firefox will suggest how to improve your application startup time if needed
  • Preliminary implementation of Firefox Health Report (see FAQ)

Changed:
  • Ability to Restore removed thumbnails on New tab Page
  • Add-ons History API removals in Places
  • CSS -moz-user-select:none selection changed to improve compatibility with -webkit-user-select:none (bugs 816298)
  • Graphics related performance improvements (bugs 809821)
  • Removed E4X support from SpiderMonkey

Developer:
  • Implemented Remote Profiling
  • Integrated, Add-on SDK loader and API libraries into Firefox

HTML5:
  • Added support for element
  • Implemented scoped stylesheets

Fixed:
  • Some function keys may not work when pressed (833719)
  • Browsing and Download history clearing needs unification to avoid confusion on clearing download history (847627)

References:
Firefox 21 Beta Release Notes.
Firefox Beta Includes Changes to the Do Not Track Options

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