Mozilla今天宣布了其支持WebM特性的瀏覽器預覽html5code.net' title='html5模板網'>(1.9.3 Number 5)版本可以工作在html5code.net' title='html5模板網'>Mac, html5code.net' title='html5模板網'>Windows和html5code.net' title='html5模板網'>Linux下，并支持32和64位版本，新版帶來了WebM支持、html5視頻全屏播放和一系列html5的表格、數據新特性，并進一步提升了JS性能，以下是更新列表和下載信息：

查看:html5code.net' title='html5模板網'>Mozilla Developer Preview (1.9.3 Number 5)
 

User-facing changes

• Aero Glass is now enabled for Windows Vista and Windows 7.
• More parts of the new html5code.net' title='html5模板網'>Windows theme have landed including new main button icons. Many more changes are coming in later releases.
• The new Add-ons manager has landed. The UI for the new Add-ons manager is not yet complete.
• You can now put tabs on top (View -> Toolbars -> Tabs on Top) although without most of the final UI this isn’t as useful as it could be.

Web-facing changes

• Support for html5code.net' title='html5模板網'>WebM is included with this build. (Try an html5code.net' title='html5模板網'>example video on Youtube.)
• When viewing html5 videos in full screen, we now use html5code.net' title='html5模板網'>hardware acceleration for Windows (DX9) and Macs (OpenGL).
• This is the first release of any browser that has proper support for html5code.net' title='html5模板網'>parsing html5 according to the specification.
• This build has early support for html5code.net' title='html5模板網'>some html5 forms.
• We now support the html5code.net' title='html5模板網'>FormData interface, part of XHR level 2 spec.
• We now support a Mozilla-specific CSS selector: html5code.net' title='html5模板網'>-moz-any. Please see the post for examples, but this will be very useful in html5 contexts.
• We now do html5code.net' title='html5模板網'>Lazy Frame Construction which can vastly improve the performance of complex pages that add large numbers of elements to a page.
• Lots of new JavaScript performance improvements have been made.

Platform Changes

• An updated about:memory page shows you how memory is being consumed in the browser. This will improve with later updates to give even more useful data and cover more internal memory pools.
• On the Mac we now support the html5code.net' title='html5模板網'>Cocoa event model for NPAPI plugins. This is used by Flash 10.1 and the new Java plugin from Apple.
• html5code.net' title='html5模板網'>ChromeWorkers with jscytpes is now supported.