Mac Chrome (updated) desktop

Only on Texags, I'm getting a new page telling me I need to update my Flash -- impossible since Flash is embedded into Chrome. Obviously malware. This started happening last week when I was composing posts but now it is happening when reading posts. By new page, I mean it goes to a new page and I must go backward. Whatever post I was working on goes away. As stated, this only happens on Texags.

I've ran several different anti-virus plus malware scans and they come back with nothing.

Please advise.