Mozilla Firefox 2 is a version of Firefox, a web browser released on October 24, 2006 by the Mozilla Corporation. Firefox 2 uses version 1.8 of the

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layout engine for displaying web pages. The release contained many new features not found in

Firefox 1.5 The project that became Firefox today began as an experimental branch of the Mozilla Suite called ''m/b'' (or ''mozilla/browser''). Firefox retains the cross-platform nature of the original Mozilla browser, using the XUL user interface markup lan ...

, including improved support for Scalable Vector Graphics (SVG) and JavaScript 1.7, as well as user interface changes. On March 22, 2006, the first alpha version of Firefox 2 (Bon Echo Alpha 1) was released. It featured Gecko 1.8.1 for the first time. Mozilla Firefox 2.0.0.20 is the final version to support Windows NT 4.0, Windows 98 and Windows Me, although it can run on Windows 95 and

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using tweaks.

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support was added October 18, 2007 with version 2.0.0.8. Firefox 2.0 featured updates to tabbed browsing environment, the

extensions manager Extension conflicts were sometimes a common nuisance on Apple Macintosh computers running the classic Mac OS, especially System 7. Extensions were bundles of code that extended the operating system's capabilities by directly patching OS calls, ...

, the GUI, and the find, search, and software update engines; a new session restore feature; inline spell checking; and an anti-phishing feature which was implemented by Google as an extension, and later merged into the program itself. Mozilla ended support for Firefox 2 on December 18, 2008.

Overview of changes

* Links default to open in a new tab. * Close button on every tab. * Inline spell checking for text boxes. * Session restoration after a browser crash. * Search suggestion for Google and Yahoo!. * New

search plugin A search plugin provides the ability to access a search engine from a web browser, without having to go to the engine's website first. Technically, a search plugin is a small text file that tells the browser what information to send to a searc ...

manager and add-on manager. * Web feed previewing. * Bookmark microsummaries. * Updates to the extension system. * Support for Sherlock and OpenSearch. * Support for SVG text using svg:textPath. * Built-in anti-phishing protection. * Search suggestions appear with search history in the search box for Google and Yahoo!. * Support for client-side session and

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. * Improved feed support. * A new NSIS-based installer. * JavaScript 1.7. * Enhanced security and localization support for extensions. * New Winstripe theme refresh: **New navigation icons ** URL bar refresh (New Go button attached to the URL bar) **Search bar refresh Tab bar refresh **Alltabs button (used to view a popup list of all tabs open)

Market adoption & usage of Firefox 2

As one article noted after the release of Firefox 2.0 in October 2006, ''"

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had the lion's share of the browser market with 77.22%. Internet Explorer 7 had climbed to 3.18%, while Firefox 2.0 was at 0.69%."'' A Softpedia article, however, noted in July 2007 that ''"Firefox 2.0 has been also expanding its share constantly in spite of IE7. From just 0.69% in October 2006, Firefox 2.0 is now accounting for 11.07% of the market. Mozilla has even sacrificed version 1.5 of its open source browser for Firefox 2.0. With support cut at the end of June, Firefox 1.5 dropped to just 2.85%."'' Firefox 2 began to lose notable market share to

Firefox 3 Mozilla Firefox 3.0 is a version of the Firefox web browser released on June 17, 2008, by the Mozilla Corporation. Firefox 3.0 uses version 1.9 of the Gecko layout engine for displaying web pages. This version fixes many bugs, improves standard ...

. Within 24 hours after its release, Firefox 3 usage rose from under 1% to over 3% according to Net Applications in that time period. Firefox 2 market share consistently dropped, eventually being surpassed by Firefox 3 in 2008 and

Firefox 3.5 Mozilla Firefox 3.5 is a version of the Firefox web browser released in June 2009, adding a variety of new features to Firefox. Version 3.5 was touted as being twice as fast as 3.0 (due its TraceMonkey JavaScript engine and rendering improveme ...

in 2009 in the general browser market as the Firefox version with the greatest share, and by early 2009 had dropped under 3 percent.

Release compatibility

End of Life

Firefox 2.x was end-of-lifed in December, 2008. With roughly 26 months of support, only

Firefox 3.6 Mozilla Firefox 3.6 is a version of the Firefox web browser released in January 2010. The release's main improvement over Firefox 3.5 is improved performance (due to further speed improvements in the TraceMonkey JavaScript engine). It uses the Gec ...

was supported longer. The Gecko 1.8.1 browser core continued to receive patches for projects such as

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, K-Meleon, and SeaMonkey, even after official Firefox releases had ceased. By 2011, the 1.8.1 core had become obsolete, as major websites dropped support for it by employing newer technologies for presentation and complex scripting. The latter can be resource-intensive with the older core, and users stuck with it should use NoScript The latest legacy NoScript version for Firefox 2.0 and SeaMonkey 1.1 is 1.10 to avoid problems with scripts that take too long to process (at the cost of losing some or all site features beyond basic functionality). Services with large user bases have relegated browsers with the Gecko 1.8.1 rendering engine to using lightweight or mobile versions of their sites, alongside recommendations to upgrade the browser; while others only recommend to upgrade. Nevertheless, there is still a very large number of websites that are freely usable and navigable with Firefox 2.0 or equivalents, alone because many of them must still support other older browsers, like Internet Explorer 6 or IE7.

Release history

References

External links

Mozilla Firefox homepage
for

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Mozilla Firefox project page
for developers
Mozilla EULA
* {{web browsers, desktop 2 2006 software Free software programmed in C++ Gopher clients History of web browsers Linux web browsers MacOS web browsers POSIX web browsers Unix Internet software Windows web browsers Software that uses XUL