I was looking for some hints on how the URL prefs are being configured and why they are configured by default the way they are.
I couldn't find any hints...so i did what i always do, lod the Prefs file into Notepad and skim through the readable text

Look what i found:
Starting from line 30 upto line 84
Hidden Text - Click to Show :
As you can see the URL prefs really only start after line 84.
While i'm pretty sure that the text above isn't used in any way in the URL prefs it still makes me wonder...WHY is it there?
Was URL Prefs recycled from Screenmode Prefs?
BTW: I found the info i was looking for, so mission accomplished

;$%s: launch-handler config, created by URL preferences %ld.%ld (%s)
;===========================================================================
;
;Syntax:
; The directives for each client must occupy the one line.
; Comments begin with ; effective to end of line.
; Keywords are not case sensitive.
; '=' sign is optional.
; Parameters that contain = or spaces must be enclosed within "" quotes.
; At least one space must be present between directives.
; Blank lines are ignored.
;
; See Also; dos.library/ReadLineItem() for additional semantics.
;
;Keywords:
; CLIENTNAME = "CLIENT NAME"
; Name of client to display in requester, if more than one.
;
; CLIENTPATH = "Sys:internet/client"
; AmigaDOS path to the client to be run.
;
; CMDFORMAT = "URL=http://%s"
; The exec RawDoFmt() format string specifier, where the
; token '%s' will be the command string.
; The command string will have the protocol part removed.
;
; DEBUG Specifying this directive will show the formatted
; commandline, just before it is executed.
;
;===========================================================================