Okay.
I tried to get Google Chrome and it sent me to Chromium — and said I was already running the latest.
I did not see a link to download Chrome. I will check to see if I can just download it.
My Linux is 64-bit.
https://www.google.com/chrome/browser/desktop/index.html
Just save it then open it with your package installer and follow the instructions. In Ubuntu it is GDebi, not sure if it's the same in Mint but I've also installed it by opening it up with Software Center so one of those should work.
CGato