If I start a download in FF and close FF, the download continues. But if I start a download in FFP and close FFP, the download disappears.
Also, I can run (in this order) AVG Anti-Spyware, Spybot, and Adaware. Then surf for an hour in FFP from a folder on my HDD. Then the programs pick up spyware. Would this happen from the thumb drive? I never Spyware scan my thumb drive. Should I?
If the malware is on your stick, you'll have to remove from the stick. It's not really any different from any other storage device connected to the system.
Vintage!