Mozilla is the new version of Netscape! It is essentially a rewrite of Netscape as an open source project. The latest version is not available directly from Debian (only an older M18 release is currently available under unstable--15 May 2001) but is supplied by a Debian developer. Add the following to your /etc/apt/sources.list:
deb http://pandora.debian.org/~kitame/mozilla ./
Mozilla is becoming pretty stable and works as the rendering engine for galeon and epiphany.