I've been using the default virus protection on Windows 10 and I think it's fine. But I just came across something that tried to get me to call a number, etc., etc. I force quit Firefox from Task Manager a couple of times - it kept loading the viral site. Eventually I just force quit for a fourth (or so) time and quickly quit the 5-6 tabs the viral site tried to spawn using the close window button in the upper right.
But now I'm noticing that Firefox is spawning 6 instances of Firefox in task manager. I have 2 extensions and 2 plugins loaded. I'm fully aware of the extensions, and the plugins just seem to be codecs which I think are legit. Should I be worried? I haven't even thought about a computer virus in years.
I used to use Spybot as a secondary malware checker. Any advice on one I could use to be extra safe?