When I start Firefox (3.6.8) the keyword.URL field automatically changes to "http://www.gobrs.com/search/?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&rls=VHp9VLat&q=" Despite having reset this field several times it still reverts back to this. Virus and spyware scans have so far returned zero results. Google finds no results for "gobrs", and after one visit to "www.gobrs.com" my firewall and anti-virus both disabled themselves.