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Aurora is the rapid-fire release channel for the next iteration of the Firefox Web browser. The Aurora channel is where users can test the latest features and innovations. Users can expect an increase in polish from the raw, cutting edge features in the nightly builds. Aurora releases may not be as stable as beta or final releases.

With Aurora:

  • Experience the newest innovations in an unstable environment that's not for the faint of heart
  • Provide feedback on features and performance to help determine what makes the final release

What's New

Version 34.0a2:

  • Easily switch themes/personas directly in the Customizing mode
  • Improved "Firefox is already running" dialog with an option to recover from a locked Firefox process
  • CSS3 Font variants and features control (e.g., kerning) implemented
  • Support for the ECMAScript 6 Symbol data type added
  • matches() more...


  • OS X 10.6 or later

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Current Version (34.x)


Downloads 13,391
Version Downloads 842
License Free
Date 08 Sep 2014
Platform Intel 64 / OS X / Intel 32
Price Free
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