Konqueror

Konqueror is an open source Web browser. For you techies, it is HTML4.0 compliat, and supports Java applets, JavaScript, CSS1 and (partially) CSS2, as well as Netscape plugins (for example, Flash or RealVideo plugins).

It uses a very capable HTML rendering engine called KHTML (implemented as a KPart and as such, easily used by other KDE programs) and also used by the Apple browser Safari. It is licensed and distributed under the GNU General Public License. Konqueror is also a file manager and file viewer designed as a core part of the K Desktop Environment.