@RCBinTN - If you go here (same link that MrWalkman posted) and download the cert with the button marked "Download", you can then navigate to wherever you saved it (I did it on my desktop). Double-click the cert, and it should install on your Mac.
I'd then restart your Mac again (Sorry, sir.), and then it should work. I'm not able to exactly test it since my Chrome is already updated (and I'm on Big Sur).
I'd then restart your Mac again (Sorry, sir.), and then it should work. I'm not able to exactly test it since my Chrome is already updated (and I'm on Big Sur).