Firefox 4

Mozilla Firefox 4
Original author(s)Mozilla Corporation
Developer(s)Mozilla Corporation
Mozilla Foundation
Initial releaseMarch 22, 2011 (2011-03-22)[1]
Final release
4.0.1 / April 28, 2011; 13 years ago (2011-04-28)
Repository
Written inC++, JavaScript,[2] CSS,[3][4] XUL, XBL
EngineGecko
Operating systemCross-platform
Size11.9 MB – Windows
26.8 MB – Mac OS X
13.2 MB – Linux
Available in81 languages
TypeWeb browser
FTP client
LicenseMPL/GNU GPL/GNU LGPL[5]
Websitefirefox.com
Customized Firefox 4 on Ubuntu
Related articles
Origins and lineage
Category

Mozilla Firefox 4 is a version of the Firefox web browser, released on March 22, 2011.[6] The first beta was made available on July 6, 2010; Release Candidate 2 (a base for the final version) was released on March 18, 2011.[7][8] It was codenamed Tumucumaque,[9] and was Firefox's last large release cycle. The Mozilla team planned smaller and quicker releases following other browser vendors.[10] The primary goals for this version included improvements in performance, standards support, and user interface.[11]

There was one security update in April 2011 (4.0.1) and version 4 of the browser was made obsolete by the release of Firefox 5 in June 2011.[12]

This marked a transition to giving much less weight to major version numbers, with 5 more major version numbers used by December of that year (5, 6, 7, 8, and 9), compared to 4 in nearly a decade of Firefox development (1, 2, 3, 4).

  1. ^ "Releases/Firefox 4.0". MozillaWiki. Mozilla Foundation. Retrieved March 16, 2011.
  2. ^ LCC 3401 Firefox Group (2005). "Firefox Extension Development Tutorial". Rietta. Archived from the original on August 4, 2009. Retrieved December 19, 2009.{{cite web}}: CS1 maint: numeric names: authors list (link)
  3. ^ Walsh, David (July 10, 2008). "Firefox uses an 'html.css' stylesheet for default rendering styles". The David Walsh Blog. Retrieved December 19, 2009.
  4. ^ "The Firefox addon, Stylish takes advantage of Firefox's CSS rendering to change the appearance of Firefox". Userstyles.org. Archived from the original on May 23, 2009. Retrieved December 19, 2009.
  5. ^ "Mozilla End-User Licensing Agreements". Mozilla Foundation. Retrieved November 8, 2010.
  6. ^ Fiveash, Kelly (March 21, 2011). "Firefox 4 gets yet another final test build release". The Register. Archived from the original on March 8, 2018.
  7. ^ "Firefox/4/Beta". MozillaWiki. Mozilla Foundation. March 23, 2011. Retrieved February 10, 2011.
  8. ^ Rooney, Paula (March 2, 2011). "Firefox 4 RC expected to ship roughly on March 9". ZDNet. Archived from the original on August 28, 2016.
  9. ^ Novak, Chelsea (July 8, 2011). "Looking back on Mozilla Parks". Chelsea Novak (blog). Archived from the original on July 14, 2011. Retrieved September 27, 2013 – via WordPress.
  10. ^ Kobie, Nicole (February 28, 2011). "Mozilla: Firefox 4 will be our last big release". PC Pro. Archived from the original on October 13, 2013. Retrieved March 3, 2011.
  11. ^ Beltzner, Mike (May 10, 2010). "Firefox 4: fast, powerful, and empowering". Archived from the original on May 12, 2010. Retrieved September 21, 2010.
  12. ^ Cite error: The named reference computerworld was invoked but never defined (see the help page).