旧版本 Firefox 4.0 (Beta 9)
Firefox 4.0 (Beta 9)
Windows 95, 98, Me (Firefox 2), 2000, XP, Vista, 7, 8
Open Source
14 January, 2011 (10 years ago )

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下载 Firefox 4.0 (Beta 9)
Firefox 4.0 (Beta 9)

Firefox 4.0 (Beta 9) (11.19 MB)

okay 43 scans reported this version clean

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系统要求 Firefox 4.0 (Beta 9)
  • Windows 2000
  • Windows XP
  • Windows Vista
  • Windows Vista x64
  • Windows 7
  • Windows 7 x64
程序信息 Firefox 4.0 (Beta 9)
Firefox 4.0 (Beta 9)

11.19 MB

14 January, 2011 (10 years ago)

MD5 校验码:

SHA1 校验码:

版本历史 Firefox 4.0 (Beta 9)
  • Overhaul of the bookmarks and history code, enabling faster bookmarking and startup performance
  • Per-compartment garbage collection is now enabled, reducing work done during complex animations
  • See the complete…


Firefox 截图
Installing Firefox 4.0 (Beta 9) is based on the Gecko 2.0 Web platform. This firefox 4 Beta is considered to be stable and safe to use for daily web browsing. More
A free open source, cross-platform, graphical web browser with experience great improved Firefox Sync to securely access your Firefox history, bookmarks,… More
This option shows General panel which allows you to set what page(s) displays when you start your browser. More
关于 Firefox

Mozilla Firefox is a free, open source, cross-platform, graphical web browser developed by the Mozilla Corporation and hundreds of volunteers. The browser began as a fork of the Navigator component of the Mozilla Application Suite; Firefox has since become the foundation's main development focus (along with its Thunderbird mail and news client), and has replaced the Mozilla Suite as their official main software release.
Firefox includes tabbed browsing, a spell checker, incremental find, live bookmarking, a download manager, and an integrated search system that uses the user's desired search engine. Functions can be added through add-ons created by third-party developers, the most popular of which include the NoScript JavaScript disabling utility, Tab Mix Plus customizer, FoxyTunes media player control toolbar, Adblock Plus ad blocking utility, StumbleUpon (website discovery), Foxmarks Bookmark Synchronizer (bookmark synchronizer), DownThemAll! download enhancer, and Web Developer toolbar.

Firefox Features:

  • Remember site passwords without ever seeing a pop-up.
  • Bookmark, search and organize Web sites quickly and easily.
  • View Web pages faster, using less of your computer's memory.
  • Find the sites you love in seconds - enter a term for instant matches that make sense.
  • Avoid online scams, unsafe transactions and forgeries with simple site identity.
  • See any part of a Web page, up close and readable, in seconds.
  • Browse with a Firefox that's integrated into your computer's operating system.

更新 : Firefox 更新

Did You Know?

The Web is all about innovation, and Firefox sets the pace with dozens of new features to deliver a faster, more secure and customizable Web browsing experience for all.