Mozilla Firefox 42.0 Beta 7 发布

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　　Firefox 41版刚发布没多久，现在，Mozilla又推出了42.0 beta版，主打隐私保护和追踪牌。这项叫做隐私浏览下的追踪保护(Tracking Protection in Private Browsing)的试验性功能将覆盖各大平台，包括Mac、Windows、Linux、Android。据悉，该功能主要针对第三方对用户使用习惯的追踪。
　　近期，开发商对这方面变得尤为重视。比如苹果最新发布的iOS 9，就具备了屏蔽第三方数据追踪的功能。
　　除了追踪保护功能之外，42.0 beta版Firefox还加入多个其他新的功能，如桌面客户端下的浏览器其控制中心(Control Center)现具备了安全与隐私控制功能、播放音频的标签得到了新的指示标记、一键静音功能、登录管理和WebRTS功能加强、加入更多类型HTML5和以开发者为方向的更新。
　　Android版（移动版）同样也有大量新增的功能如在后台打开Android软件的外部URL、无需切换软件就能打开多个链接、支持在地址栏中直接输入语音、允许用户预览、编辑及删除登录。
　　Mozilla Firefox 42.0 Beta 7  下载:
　　http://dm-download02.mozilla.org/pub/mozilla.org/mozilla.org/firefox/releases/42.0b7/
　　
　　
What’s New

• 　　New
  　　Private Browsing with Tracking Protection blocks certain Web elements that could be used to record your behavior across sites
  
• 　　New
  　　Indicator added to tabs that play audio with one-click muting (Adobe Flash supported since version 19)
  
• 　　New
  　　Login Manager improvements:
  
  
  
  • 　　Improved heuristics to save usernames and passwords
    
  • 　　Edit and show all logins in line, Copy/Paste usernames/passwords from the Context menu
    
  • 　　Migration imports your passwords to Firefox from Windows Chrome and IE; import anytime from the Login Manager
    
  
  
• 　　New
  　　Control Center that contains site security and privacy controls
  
• 　　New
  　　WebRTC improvements:
  
  
  
  • 　　IPV6 support
    
  • 　　Preferences for controlling ICE candidate generation and IP exposure
    
  • 　　Hooks for extensions to allow/deny createOffer/Answer
    
  • 　　Improved ability for applications to monitor and control which devices are used in getUserMedia
    
  
  
• 　　Changed
  　　Improved performance on interactive websites that trigger a lot of restyles
  
• 　　HTML5
  　　Implemented ES6 Reflect
  
• 　　HTML5
  　　Support ImageBitmap and createImageBitmap()
  
• 　　HTML5
  　　Media Source Extension for HTML5 video available for all sites
  
• 　　Developer
  　　Remote website debugging over WiFi (no USB cable or ADB needed)
  
• 　　Developer
  　　Asynchronouscall stacks now allow web developers to follow the code flow through setTimeout, DOM event handlers, and Promise handlers.
  
• 　　Developer
  　　Configurable Firefox OS Simulator in WebIDE, to simulate reference devices like phones, tablets, even TVs
  
• 　　Developer
  　　CSS filter presets in the Inspector
  
• 　　Developer
  　　Ability to save filter presets inside CSS Filter Tooltip
  
• 　　Developer
  　　View HTML source in a tab