Timethief: I checked out that link. A couple of people had listed the malware-safemode system that I tried. It apparently worked for them but not for me. There was another set of instructions there, but I could not figure them out, and besides, I already uninstalled Firefox, and hopefully the problem went away. . . watch out, though! At the end of that link you sent? Someone sent a URL that takes you to Babylon, another fake search site!
Oh, and the people at WordPress might want to know that this all started when I tried to download their ebook software called Anthologize. Don't touch it unless you want the Claro virus!!!!
MacManx--did you check my private blog? Is all the advertising stuff gone?
When I downloaded Google Chrome, the Claro virus got in there, but I was able to delete it from the extensions.
Plus in addition to running all that anti-spy software, I changed all my passwords.
Is there anything else I should do? Thanks to all the smart people here! Wish I knew what I was doing. . .