Win32.Small.ddx is a tracking cookie.
We are sorry, but the Immunization does not work for Firefox, it is only for the Internet Explorer. ActiveX isnīt supported by Firefox, so there is no need for protection there.
Maybe in one of the coming versions there will be a bad download blocker for Firefox, but not at the moment.
Once in a while Spybot has trouble removing those.
Here is a thread in our forum that deals with the same problem:
http://forums.spybot.info/showthread.php?t=3008
If you don't have any other cookies you want to save in Firefox,you could click the Remove All Cookies button. This would be easiest, but don't do it if you have any cookies you want to keep.
If you do have other cookies in Firefox you want to keep, could remove the cookies manually from within Firefox. To do so go to Tools->Options->click the Cookies tab, then click the View Cookies button.
Looking off the Spybot report, scroll through the list to find the tracking cookie(s), then click on the tracking cookie with your mouse, and then click on the remove cookie(s) button.
Or you could try doing another scan with Spybot and see if it removes the tracking cookies this time (though it might not work, but you could try and see).
There's an article here, showing how to block third party cookies.
http://www.spybot.info/en/faq/37.html
It is also recommendable to use SpywareBlaster also, which has an option to Prevent ad/tracking cookies in firefox.
http://www.javacoolsoftware.com/spywareblaster.html
Best regards
Sandra
Team Spybot