http://wiki.dennyhalim.com/safer-browsing

opera6.ini

; Settings in this file are not overridable by users
; info: http://wiki.dennyhalim.com/safer-browsing
; (change to suite your need)
[User Prefs]
Enable Wand=0
Accept Cookies Session Only=1
Enable Trust Rating=1
Ignore Unrequested Popups=1
Show Default Browser Dialog=0

[BitTorrent]
Bandwidth Restriction Mode=1
Max Upload Rate=2

[Disk Cache]
Empty On Exit=1

[Extensions]
Plugin Failed Warning=0
Ask Flash Download=0
Delayed Script Execution=1

[ISP]
Id=mypolaris.com

[State]
Accept License=1

[Network]
; for linux:
;URL Filter File=/etc/opera/urlfilter.ini
; for windows: 
;URL Filter File=c:\windows\urlfilter.ini
; change the path where you save your urlfilter.ini 
; info: http://wiki.dennyhalim.com/safer-browsing