Mozilla Firefox is an open source web browser developed by the Mozilla corporation. Firefox runs on every major operating system, including Microsoft Windows, Linux, and Mac OS X. The browser is developed under tGPL/LGPL/MPL free software license. On the Microsoft Windows platform it is considered a good alternative to Internet Explorer and is the second most popular browser behind Internet Explorer.

Firefox 3.5.1 includes several security fixes, stability improvements, and fixes a bug that made Firefox take a long time to load on Windows computers. http://en-us.www.mozilla.com/en-US/firefox/3.5.1/releasenotes/

On August 7, 2009, Firefox 3.6 alpha 1 was released. Firefox 3.6 focuses on performance improvements and better CSS support.

Firefox features many of the same features that the current version of Internet Explorer features. Users can download free extensions from 3rd party developers or from the main firefox development team to give it further capability. Users can also use the tabbed browsing capability to open multiple web pages, without opening new windows. Firefox also features the ability to keep users away from most Phishing sites that are available.

Firefox was first released by Dave Hyatt and Blake Ross in 2002. The browser began as an experimental project and was named Phoenix, but because of name disputes, it was later renamed Mozilla Firebird. With the name Firebird, they went under intense criticism from Firebird and eventually changed the name to Mozilla Firefox.

• 1998: Netscape releases code for it's Communicator browser.
• 1999-2002: Mozilla browser developed as part of the Mozilla Application Suite based on Netscape code.
• 2002: Phoenix browser developed separately from Mozilla Application Suite.
• 2003: Becomes Mozilla Firebird.
• 2004: Becomes Mozilla Firefox.
• 2006: Release of Mozilla Firefox 2.
• 2007: Release of Firefox 3 Beta.
• June 17, 2008: Release of Firefox 3.http://www.mozilla.com/en-US/firefox/3.0/releasenotes/
• June 30, 2009: Release of Firefox 3.5.http://www.mozilla.com/en-US/firefox/3.5/releasenotes/
• August 7, 2009: Release of Firefox 3.6 Alpha 1.https://developer.mozilla.org/devnews/index.php/2009/08/07/firefox-3-6-alpha-1-now-available-for-download/