陈丹的博客Mozilla今日发布Mozilla Firefox 40.0的Beta 9版本，基于Gecko
40内核开发，新设计的标签页可以自动判断和展示您认为感兴趣的内容，广受期待的多进程特性目前还没有带来，正式版本预计8月11日发布。
下载地址:
http://dm-download02.mozilla.org/pub/mozilla.org/mozilla.org/firefox/releases/40.0b9/
New Support for Windows 10 including tablet mode New Download protection from potentially unwanted software New Suggested Tiles show sites that may be of interest, based on categories from your recent browsing history New Add URLs to a Hello conversation for additional context New New style for add-on manager based on the in-content preferences style New Smoother and more reliable CSS animations via asynchronous animations New Improved scrolling, graphics, and video playback performance with off main thread compositing (GNU/Linux) Changed Add-on extensions that are not signed by Mozilla will display a warning Changed Smoother animation and scrolling with hardware vsync (Windows only) Changed JPEG images use less memory when scaled and can be painted faster HTML5 Support for new Unicode 8.0 skin tone emoji HTML5 IndexedDB transactions are now non-durable by default HTML5 Implemented AudioBufferSourceNode.detune to modulate playback rate in cents Developer Improved Performance tools in the developer tools Developer New rules view tooltip to tweak CSS Filter values Developer New page ruler highlighting tool that displays lightweight horizontal and vertical rules on a page Developer Console API messages from SharedWorker and ServiceWorker are now displayed in web console Developer Inspector now searches across all content frames in a page Developer Places Keywords API has been deprecated, update to the Asynchronous Keywords API Developer Removed Fixed Kannada text does not display properly in built-in pdf viewer
support for binary XPCOM components in extensions, use addon SDK
"system/child_process" pipe mechanism for native binaries instead
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