Replacing Netscape for Firefox in the taskbar in new user skeleton?

[Bengt Nilsson_2]

A new user gets a taskbar with some predefined applications, such as Netscape, xterm, Text Editor and Digital clock.
I would like to replace Netscape for Firefox here.
How can this be done?

BN

[Pieter 't Hart]

look at :
dtsetup - Configure and Customize the Common Desktop Environment (CDE)

The Desktop icon lets you or the system administrator set up the front
panel, establish various window manager resources, define starting applica-
tions, and set parameters for the terminal, dtmail, and dtfile applica-
tions.