Безопасен ли natmonitor.com?

Site uses an ad supplier that uses nefarious javascript tricks to force/trick you into downloading malware. Including fake firefox notices that you need to update your browser. I just updated my FF browser to 26.0 last night, and it's still the current version, so the deception is obvious to me, and the locking of the page/tab is also an obvious malware infection route technique.