Mozilla今日发布Mozilla Firefox 40.0的Beta 8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。
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下载地址:
http://dm-download02.mozilla.org/pub/mozilla.org/mozilla.org/firefox/releases/40.0b8/
What’s New
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 support for binary XPCOM components in extensions, use addon SDK "system/child_process" pipe mechanism for native binaries instead
Fixed
Kannada text does not display properly in built-in pdf viewer
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