Mozilla Firefox 44 今日发布，今后发布的Firefox无论Beta还是正式版都会开始支持64位系统，新版带来了新的警告页面，在证书状态异常和连接可能带来不安全的情况下会自动提醒用户，同时44版本开始支持在无法播放MP4/H.264的机器上自动切换WebM/VP9。
下载地址:
https://download-installer.cdn.mozilla.net/pub/firefox/releases/44.0/
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
Fixed
Windows XP and Vista screensaver doesn't disable when watching videos (Bug 1193610)
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
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
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
Add-on signing enforcement