Doug's in laws are getting popups in Chrome using Facebook that malware is on their machine asking them to download something. Leo says that is a fishing scam trying to get them to download and install something. Leo suspects that there is a malicious extension in Chrome that is causing it. Leo suggests resetting Chrome to wipe out everything. They'll have to reinstall the extensions, but it's the only way to be sure. They should go to Settings and search for Reset. That'll make it go away.