Netscape 6.2.3 is a web browser developed by Netscape Communications Corporation, available for download in full install version for Windows platforms from legacy sources. This version of Netscape was officially released on 2002-05-15 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Netscape 6.2.3 is the last edition based on pre 1.0 Mozilla milestone and was released with improvement in Quicklaunch and AutoComplete features which enhanced the user experience considerably. Apart from the performance improvements from this edition onwards Netscape added full support for Windows XP platform and Mac OS. However from this edition onwards Windows 95 support was dropped.