My MacBook Pro has been infected with some sort of malware. In a Safari window, when I click on any link (such as a thread in Nikon Cafe) I get a new tab with something like this: It is not the same thing each time; sometimes it is a warning to update Java or something else. I've even gotten a window that spoofs Apple Tech support, warning that I seem to be infected with unwanted pop-ups, call this number xxx-xxx-xxxx or participate in an online chat. I have MalwareBytes and have run a scan, which finds nothing. I deleted all cookies and restarted the computer. No change. It only happens in Safari; FireFox seems to be o.k. Do you computer folks have any suggestions?