Firefox 44 débarque en téléchargement, les nouveautés.

New

• Improved warning pages for certificate errors and untrusted connections
• Enable H.264 if system decoder is available
• Enable WebM/VP9 video support on systems that don’t support MP4/H.264
• In the animation-inspector timeline, lightning bolt icon next to animations running on the compositor thread
• Support the brotli compression format via HTTPS content-encoding
• Screenshot commands allow user choice of pixel ratio in Developer Tools

Fixed

• Windows XP and Vista screensaver doesn’t disable when watching videos (Bug 1193610)
• Various security fixes

Changed

• To support unicode-range descriptor for webfonts, font matching under Linux now uses the same font matching code as other platforms
• Use a SHA-256 signing certificate for Windows builds, to meet new signing requirements
• Firefox has removed support for the RC4 decipher
• Firefox will no longer trust the Equifax Secure Certificate Authority 1024-bit root certificate or the UTN – DATACorp SGC to validate secure website certificates
• Stricter validation of web fonts
• On-screen keyboard support temporarily turned off for Windows 8 and Windows 8.1

Developer

• Right click on a logged object in the console to store it as a global variable on the page
• Visual tools for Animation:
  • View/Edit CSS animation keyframe rules directly in the inspector
  • Visually modify the cubic-bezier curve that drives the way animations progress through time
  • Discover and scrub through all CSS animations and transitions playing on the page
  • Learn more: http://devtoolschallenger.com/
• Visual tools for Layout and Styles:
  • Display rulers along the viewport to verify size and position and use the measurement tool to easily detect spacing and alignment problems
  • Use CSS filters to preview and create real-time effects like drop-shadows, sepia, etc
  • Learn more: http://devtoolschallenger.com/
• New memory tool for inspecting the memory heap
• Service Workers API
• Built-in JSON reader to intuitively view, search, copy and save data without extensions
• Jump to function definitions in the debugger with Cmd-Click
• WebSocket Debugging API and add-on
• The rule view now displays styles using their authored text, and edits in the rule view are now linked to the style editor