Do NOT assume that Nuke Private Data deletes ALL files, cookies, Malware or Suspicious Ware (SusWare) because it does not delete all files down loaded per each on-line session. It only erases files/data created in the Firefox directory. However, there is a veritable host of SusWare files in the C://Users/UserName/AppData/Roaming directories which must either be manually deleted or you can write a script using (Perl/TclTk) to delete these files.