When I logged in this morning a window opened and said that I was today's lucky visitor to becomeanex and to complete a brief survey to receive a gift valued at $50.00. This appears to me to be some sort of scam and wanted you and others to be aware of it. At the end it wants your credit card information. Of course, I did not give it.
I believe that I found the problem - there was an extension added to my browser that I have now deleted. I had some other things pop up that was unusual - and I believe it was all linked to this extension.