i apologize beforehand for my lack of understanding.
this event occurs frequently: i would download a driver or program file and the FF download window will show the progress. upon completion of the download, a message would appear, "scanning for viruses" directly beneath the file in question in the download window. during the scanning which can be quick or an eternal minute, both the download window and the browser window are "locked down".
questions: who is doing the scanning, FF or NIS? why isn't the scanning being done during the download? why the lock down, particularly the browser window?