Mozilla Firefox 4

Mozilla Firefox is an open source web browser with a clean design, providing excellent browsing speed and very powerful customization tools, with just a reasonable footprint on computer resources.

Firefox bundles features that include smart bookmarks, spell check, private browsing, a download manager, incremental find, tab grouping (gathers related tabs and organizes them into groups) and several others. In addition to these, Firefox also accommodates a series of tools for developers, such as the DOM Inspector and the Error Console.

The first contact with Firefox shouldn't be surprising since most browsers have already adopted tabbed browsing. It comes with a tabbed interface so opening multiple pages at the same time isn't a problem anymore. But what's under the hood is what really makes the difference.

The Web is all about innovation, and Firefox sets the pace with dozens of new features to deliver a faster, more secure and customizable Web browsing experience for all.

User Experience. The enhancements to Firefox provide the best possible browsing experience on the Web. The new Firefox smart location bar, affectionately known as the "Awesome Bar," learns as people use it, adapting to user preferences and offering better fitting matches over time.

Performance

. Firefox is built on top of the powerful new Gecko platform, resulting in a safer, easier to use and more personal product.

Security

. Firefox raises the bar for security. The new malware and phishing protection helps protect from viruses, worms, trojans and spyware to keep people safe on the Web.

Customization

. Everyone uses the Web differently, and Firefox lets users customize their browser with more than 5,000 add-ons.