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Mozilla Firefox 4.0 (Beta 2)

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已测试 : 没有间谍软件、广告和病毒

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已测试: 没有间谍软件、广告和病毒

Firefox 4 Beta 2 is available in 24 languages.
- Tabs are now on top by default on Windows and OSX - Linux will be changing when the theme has been modified to support the change.
You can turn any tab into an "App Tab" by right-clicking on it and selecting "Make into App Tab" from the context menu.
Web developers can animate content using CSS Transitions.
Responsiveness and scrolling improvements from the new retained layers layout system.
JavaScript speed improvements due to engine optimizations.
Changes to how XPCOM components are registered in order to help startup time and process separation.

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