Dear Friends,
today Spybot S&D told me what follows:
Spybot S&D met and stopped a process recognised as an malware component
Process ID: 2868
file name: plugin-container.exe
found in: C:\Programmi\Mozilla Firefox
identified with: Morpheus Toolbar

Plugin container is part of Mozilla Firefox, it's not malware;
I have not a toolbar named Morpheus...
A false positive???

Thanks a lot for an answer, Paolo