Firefox
Old Version of Firefox 4.0 (Beta 11)
Selected Version
Firefox 4.0 (Beta 11)
Supported Systems
Legacy OS support
Windows 95, 98, Me (Firefox 2), 2000, XP, Vista, 7, 8
License
Open Source
Release Date
09 February, 2011 (4 years ago )

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Download Firefox 4.0 (Beta 11)
Firefox 4.0 (Beta 11)

Firefox 4.0 (Beta 11) (11.32 MB)

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System Requirements of Firefox 4.0 (Beta 11)
  • Windows 2000
  • Windows XP
  • Windows Vista
  • Windows Vista x64
  • Windows 7
  • Windows 7 x64
Program Information of Firefox 4.0 (Beta 11)
Version Name:
Firefox 4.0 (Beta 11)

File Size:
11.32 MB

Released Date:
09 February, 2011 (4 years ago)

MD5 Checksum:
483a24da47305328d52928418f55abee

SHA1 Checksum:
C2B7480C44788F3D46F0F0445A87752C15A9A916

Version History of Firefox 4.0 (Beta 11)
  • Support for the proposed Do Not Track ("DNT") header
  • Connection status messages are now shown in a small overlay
  • WebGL has been re-enabled on Linux
  • The default homepage design has been refreshed
  • Firefox…

View More...

Firefox Screenshots
Choosing add-ons for the way you browse. To make your browser look and function the way you want. More
Mozilla Firefox support for the proposed Do Not Track ("DNT") header. More
About 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.

Updates : Firefox Updates

Did You Know?

Forbes.com called Firefox the best browser in a 2004 commentary piece,and PC World named Firefox "Product of the Year" in 2005 on their "100 Best Products of 2005" list.