Hi. I clicked to view a GPS cycle route, but the site must have been infected. There was a voice prompt that said my computer is infected and it gives a toll free number. It also prevents any other action within Firefox, although i can open other programmes. I shut my computer down and restarted it and then completed a MAlware Bytes scan and a sophos virus scan - they both came back clear. Although the Sophos did say thatit was unable to scan one file. I thought it was all ok, until i reopened Firefox and the site came back. Please help.