陈丹的博客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。
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New
Private Browsing with Tracking Protection blocks certain Web elements that could be used to record your behavior across sites
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New
Indicator added to tabs that play audio with one-click muting (Adobe Flash supported since version 19)
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New
Login Manager improvements:
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Improved heuristics to save usernames and passwords
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Edit and show all logins in line, Copy/Paste usernames/passwords from the Context menu
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Migration imports your passwords to Firefox from Windows Chrome and IE; import anytime from the Login Manager
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New
Control Center that contains site security and privacy controls
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New
WebRTC improvements:
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IPV6 support
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Preferences for controlling ICE candidate generation and IP exposure
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Hooks for extensions to allow/deny createOffer/Answer
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Improved ability for applications to monitor and control which devices are used in getUserMedia
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Changed
Improved performance on interactive websites that trigger a lot of restyles
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HTML5
Implemented ES6 Reflect
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HTML5
Support ImageBitmap and createImageBitmap()
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HTML5
Ship Push messaging with disabled web notifications from ServiceWorkers
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Developer
Remote website debugging over WiFi (no USB cable or ADB needed)
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Developer
Asynchronous
call 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
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Developer
CSS filter presets in the Inspector
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Developer
Ability to save filter presets inside CSS Filter Tooltip
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unresolved
The CTRL+K shortcut does not give focus to the search field when used from the URL bar on GNU/Linux with GTK+ 3.14 and 3.16 (1176929)
下载地址:
http://dm-download02.mozilla.org/pub/mozilla.org/mozilla.org/firefox/releases/42.0b4/
未经允许不得转载：陈丹的博客 » Mozilla Firefox 42.0 Beta 4 发布