Please see here:
http://forums.spybot.info/showpost.php?p=47143&postcount=4
noel-pr7
2006-10-24, 00:46
How to do it?
sorry xpsunny but none of the versions of Spybot S&D offer bad download blocking or immunizing for firefox browsers
i'm not sure if there will ever be such a feature. perhaps in version 1.5
As in the link Zenobia provided above. ;)
Hello,
We are sorry, but the Immunization does not work for Firefox, it is only for the Internet Explorer.
Maybe in one of the coming versions there will be a bad download blocker for Firefox, but not at the moment.
Best regards
Sandra
Team Spybot