Mozilla Firefox - faster, more secure, easier to use and sporting a new look, this latest Firefox release sets a new standard for web browser innovation. Mozilla Firefox project (formerly Firebird, which was formerly Phoenix) is a redesign of Mozilla's browser component, written using the XUL user interface language and designed to be cross-platform. It is small, fast and easy to use, and offers many advantages over other web browsers, such as the tabbed browsing and the ability to block pop-up windows.

Features in Firefox include:
- Easy migration: Switching to Firefox has never been easier now that Firefox imports data like Favorites, history, settings, cookies and passwords from Internet Explorer. Firefox can also import settings from Mozilla 1.x, Netscape and Opera.
- Smaller Download: Continuing efforts to make this the most efficient browser, the Windows version of Firefox is now only a 4.7 MB download, making downloading Firefox a breeze for dial-up and broadband users alike.
- New Default Theme: A new default theme provides a bright new look for Windows and Linux users.
- SmartUpdate: A new SmartUpdate feature notifies users of new versions of Firefox to ensure that the browser is always up to date.
- Help: A new online help system makes this one powerful, friendly browser.
- Extension/Theme Manager: New Extension and Theme Managers provide a convenient and secure way to manage and update the hundreds of add-ons that set Firefox apart from other browsers.
Mozilla Firefox also includes numerous bug fixes and incremental improvements, including faster page load speed.
- Popup Blocking: Stop annoying popup ads in their tracks with Firefox's built in popup blocker.
- Tabbed Browsing: View more than one web page in a single window with this time saving feature. Open links in the background so that they're ready for viewing when you're ready to read them.
- Smarter Search: Google Search is built right into the toolbar, and there are a plethora of other search tools including Keywords (type "dict " in the Location Bar), and FastFind (start typing the first few letters of some text in the page and Firefox takes you there).
- Privacy and Security: Built with your Security in mind, Firefox keeps your computer safe from malicious spyware by not loading harmful ActiveX controls. A comprehensive set of privacy tools keep your online activity your business.
- Hassle-Free Downloading: Files you download are automatically saved to your Desktop so they're easy to find. Fewer prompts mean files download quicker.
- Fits Like a Glove: Simple and intuitive, yet fully featured, Firefox has all the functions you're used to - Bookmarks, History, Full Screen, Text Zooming to make pages with small text easier to read, etc.
- S M L XL XXL XXXL: Firefox is the most customizable browser on the planet. Customize your toolbars to add additional buttons, install new Extensions that add new features, add new Themes to browse with style, and use the adaptive search system to allow you to search an infinite number of engines. Firefox is as big or small as you want.
- Setup's a Snap: At only 4.7MB (Windows), Firefox only takes minutes to download over a fast connection. The installer gets you set up quickly, and the new Easy Transition system imports all of your settings - Favorites, passwords and other data from Internet Explorer and other browsers - so you can start surfing right away.
- A Developer's Best Friend: Firefox comes with a standard set of developer tools including a powerful JavaScript and CSS error/warning console, and an optional Document Inspector that gives unheard of insight into how your pages work.
- Read Mail—Not Spam

What's New in Firefox 2:
* Visual Refresh: Firefox 2's theme and user interface have been updated to improve usability without altering the familiarity of the browsing experience.
* Built-in phishing protection: Phishing Protection warns users when they encounter suspected Web forgeries, and offers to return the user to their home page. Phishing Protection is turned on by default, and works by checking sites against either a local or online list of known phishing sites. This list is automatically downloaded and regularly updated when the Phishing Protection feature is enabled.
* Enhanced search capabilities: Search term suggestions will now appear as users type in the integrated search box when using the Google, Yahoo! or Answers.com search engines. A new search engine manager makes it easier to add, remove and re-order search engines, and users will be alerted when Firefox encounters a website that offers new search engines that the user may wish to install.
* Improved tabbed browsing: By default, Firefox will open links in new tabs instead of new windows, and each tab will now have a close tab button. Power users who open more tabs than can fit in a single window will see arrows on the left and right side of the tab strip that let them scroll back and forth between their tabs. The History menu will keep a list of recently closed tabs, and a shortcut lets users quickly re-open an accidentally closed tab.
* Resuming your browsing session: The Session Restore feature restores windows, tabs, text typed in forms, and in-progress downloads from the last user session. It will be activated automatically when installing an application update or extension, and users will be asked if they want to resume their previous session after a system crash.
* Previewing and subscribing to Web feeds: Users can decide how to handle Web feeds (like this one), either subscribing to them via a Web service or in a standalone RSS reader, or adding them as Live Bookmarks. My Yahoo!, Bloglines and Google Reader come pre-loaded as Web service options, but users can add any Web service that handles RSS feeds.
* Inline spell checking: A new built-in spell checker enables users to quickly check the spelling of text entered into Web forms (like this one) without having to use a separate application.
* Live Titles: When a website offers a microsummary (a regularly updated summary of the most important information on a Web page), users can create a bookmark with a "Live Title". Compact enough to fit in the space available to a bookmark label, they provide more useful information about pages than static page titles, and are regularly updated with the latest information. There are several websites that can be bookmarked with Live Titles, and even more add-ons to generate Live Titles for other popular websites.
* Improved Add-ons manager: The new Add-ons manager improves the user interface for managing extensions and themes, combining them both in a single tool.
* JavaScript 1.7: JavaScript 1.7 is a language update introducing several new features such as generators, iterators, array comprehensions, let expressions, and destructuring assignments. It also includes all the features of JavaScript 1.6.
* Extended search plugin format: The Firefox search engine format now supports search engine plugins written in Sherlock and OpenSearch formats and allows search engines to provide search term suggestions.
* Updates to the extension system: The extension system has been updated to provide enhanced security and to allow for easier localization of extensions.
* Client-side session and persistent storage: New support for storing structured data on the client side, to enable better handling of online transactions and improved performance when dealing with large amounts of data, such as documents and mailboxes. This is based on the WHATWG specification for client-side session and persistent storage.
* SVG text: Support for the svg:textpath specification enables SVG text to follow a curve or shape.
* New Windows installer: Based on Nullsoft Scriptable Install System, the new Windows installer resolves many long-standing issues.

Release Notes

Homepage - http://www.mozilla.org/products/firefox/

Download Firefox 2.0.0.4 for Windows: 5.8 MB

Download Firefox 2.0.0.4 for Linux: 9.3 MB

Download Firefox 2.0.0.4 for MacOS: 17.1 MB