Avant Browser is a popular freeware web browser from a Chinese programmer named Anderson Che, which unites the Trident layout engine built into Windows (see Internet Explorer shell) with an interface intended to be more feature-rich, flexible and ergonomic than Microsoft’s Internet Explorer (IE). It runs on Windows 98 and above, including Windows Vista. Internet Explorer version 6 or 7 must be installed.
As of November 2008, total downloads surpassed 22.5 million.
Avant Browser is currently available in 41 languages.

Safari is a proprietary Internet web browser developed by Apple Inc. First released as a public beta on January 7, 2003 on the company’s Mac OS X operating system, it became Apple’s default browser beginning with Mac OS X v10.3, commonly known as “OS X Panther.” Apple has also made Safari the native browser for the iPhone and iPod Touch.
On June 11, 2007, a version of Safari was released for the Microsoft Windows operating system, supporting both Windows XP and Windows Vista.

Google Chrome is a free web browser developed by Google.

Opera is a web browser and Internet suite developed by the Opera Software company.

Mozilla Firefox is a free and open source web browser descended from the Mozilla Application Suite.