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http://www.macupdate.com/download/38570/firefox-40.0a2.en-us.mac.dmg
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Firefox Developer Edition (was Aurora) is the rapid-fire release channel for the next iteration of the Firefox Web browser. The Developer 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. These releases may not be as stable as beta or final releases.

With Firefox Developer Edition:
  • 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 40.0a2:
New
  • Download protection from potentially unwanted software
  • New style for add-on manager based on the in-content preferences style
  • Improved scrolling, graphics, and video playback performance with off main thread compositing (Linux)
  • Process separation enabled for opt-in testing
  • Smoother animation and scrolling with hardware vsync (Windows more...

Requirements

  • OS X 10.6 or later

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Ratings

Overall
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Current Version (40.x)
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Details

Downloads 15,510
Version Downloads 449
License Free
Date 19 May 2015
Platform Intel 64 / OS X / Intel 32
Price Free
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