I've gotten, over the past couple of weeks, at least three screens popping up saying "Urgent Firefox Update". These are from URL
https://eexowdlzyjx.net/. At least once they have been preceded by "request to load" security popups from unknown (and equally obscure) URLs. All this while browsing the BBC news site.
Am I correct in assuming that these are bogus?
I'm running Mozilla Firefox, version 47.0, and I have Flashblock 1.5.20 installed. My AV software is Norton Internet Security version 184.108.40.206.
For some reason today Norton "caught" this, since right after the bogus screens popped up it came up with a warning that it had stopped a virus. It labels it
pf06aivz.js.part and calls it a "JS.Downloader".
The bogus screens came up just after I closed a BBC screen, and the bogus web screen loaded over ("pushed down") a CNN screen. Not sure what that suggests.