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Mozilla Firefox 52 Beta 2发布

　　Mozilla Firefox 52 Beta 2 今日发布，主要增强了 Sync 同步功能中发送标签页的特性，让触屏版更好支持多进程运行，之前介绍过的在非 HTTPS 页面上如果出现密码框则会有安全提示在 52 版本中已经部署。与此同时，52 版本削减了对一些旧插件的支持，还优化了下载时的体验。

　　下载地址:

　　https://ftp.mozilla.org/pub/firefox/releases/52.0b2/

　　Firefox Beta January 25, 2017

　　Version 52.0 beta, first offered to Beta channel users on January 25, 2017

　　New

Send and open a tab from one device to another with Sync
Windows 8 touch screen support for multiprocess Firefox
Pages containing insecure password fields now display a warning directly within username and password fields.

　　Changed

Removed Battery Status API to reduce fingerprinting of users by trackers
Removed NPAPI support for plugins other than Flash. Silverlight, Java, Acrobat and the like are no longer supported.
Implemented the Strict Secure Cookies spec which forbids insecure (http:) sites from setting cookies with the "secure" attribute, and in some cases prevents an insecure site from setting a cookie with the same name as an existing "secure" cookie from the same base domain.
Improved experience for downloads:
Notification in the toolbar when a download fails
Quick access to five most recent downloads rather than three
Larger buttons for canceling and restarting
Improved text input with some third-party keyboard layouts on Windows, e.g.， keyboard layouts which have chained dead keys, inputs two or more characters with a non-printable key or a dead key sequence, inputs a character even when a dead key sequence failed to compose a character.

　　Developer

Responsive Design Mode redesigned and enhanced with device selection, network throttling, and more
Screen sharing shows a preview and no longer requires a whitelisted domain
Enabled CSS Grid Layout

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