Firefox 47.0 リリース

Firefox 47.0が2016/06/06にリリースされました。

リリースノートによると

• [new]
  • Embedded YouTube videos now play with HTML5 video if Flash is not installed.
  • Support for Google’s Widevine CDM on Windows and Mac OS X so streaming services like Amazon Video can switch from Silverlight to encrypted HTML5 video.
  • Allow no-cache on back/forward navigations for https resources
  • Embedded YouTube videos now play with HTML5 video if Flash is not installed
  • Enable VP9 video codec for users with fast machines
• [changed]
  • FUEL (Firefox User Extension Library) has been removed. Add-ons relying on it will stop working.
  • The browser.sessionstore.restore_on_demand preference has been reset to its default value (true) to avoid e10s performance problems. Because faster is better!
  • The Firefox click-to-activate plugin whitelist has been removed.
• [Developer]
  • View, start,and debug registered Service Workers in the Service Workers developer tool
  • Simulate Push messages in the Service Workers developer tool
  • Tilt is available as extension on AMO
  • See Firefox run! Review Firefox performance data in about:performance.
  • ‘Start’ button for service workers in about:debugging to start registered Service Workers
  • Changes that can affect add-on compatibility
  • Added support for ChaCha20/Poly1305 cipher suites
  • Custom user agents supported in Responsive Design Mode
  • Smart multi-line input in the Web Console
  • Developer Information
• [HTML5]
  • cuechange events are now available on TextTrack objects
  • WebCrypto: PBKDF2 supports SHA-2 hash algorithms
  • WebCrypto: RSA-PSS signature support