avast! announcements from the Czech Republic

When I opened my firefox browser for mac just now a new tab automatically opened with an avast! announcement. I noticed that the country flag in the url line showed it coming from the Czech Republic.

Anyone else get this? Is it legit?

As legit as Avast! itself, which is a Czech company.

http://www.avast.com/contacts

AVAST Software s.r.o.
Trianon Office Building
Budejovicka 1518/13a
140 00, Prague 4
Czech Republic

Would it look more ‘legit’ if Avast! was an US company?