Bellzemos,I am sorry,I was not more clear.
SpywareBlaster offers restricted site protection,in a manner similar to a extended host file.
In a normal case,when SpywareBlaster updates,a few new sites are added to the block list,and after downloading the update,you simply "enable all protection" to add the new sites to your list.
For some reason,some sites,30-40 in the Antivirus 2008-2009 family, were reverting to a unprotected state.
As thousands of people no doubt use the same combination of on demand scanners as I did,without problems,i feel it must be something unique to my system.
As it was not time proximate to a Firefox update,I do not thank that had any effect
on my problem.
I was somewhat disappointed that my help thread was simply abandoned by Java-cool.
In any event,I now use only A-Squared free as a on-demand scanner,and have had no more problems with restricted site protection loss in SpywareBlaster.
To be honest SpywareBlaster is more important for users of IE,than Firefox,but I did not mean to discourage you from using it.