firefox poopup or adware?

[antonioledesma]

after all the hype with the popup killer of firefox, the last 3 weeks I've been victim of the dreadfull popups.
Still nothing to worry, but sometimes I have a new window, but I can't seem to find out from which webpage are they from, because I see them minutes after
now, after all this shit, has any of the FF users seen these popups these days or I'm victim of an adware?

here's a pic of the poopup: