I clicked on what may have been a malicious link last night. A Firefox message popped up immediately warning of viruses, so I exited out of Firefox and then ran a full McAfee scan -- which found no viruses. But I am now getting popup messages, purportedly from Firefox, warning me that my McAfee payment has been rejected (not true) and warning that Windows Security has located viruses. A capture of one is attached. Note it says it's from qltuh.check-tl-ver-106-1.com. Assuming these aren't legit, how do I remove them? Thanks! Tom White