You mean the blocking that it had for netscape on older versions where now it is only Mozilla/Firefox?
It is only for cookies that it is blocking for Mozilla/Firefox.
If you have netscape 7 or older it will not block or let you block them.
Now I am still blocking them with netscape 7 but that is because spyblaster just adds to netscape 7 cookperm.txt file the sites to block.
Look at firefox for the cookperm file and if it is there and it is still a text file then I could attach the one I have for you if you want it. If it is not the same type of file then it would not work.
But spyblaster supports IE and blocks lots of bad things and on the Mozilla/Firefox it is only cookies that are from bad sites.