I have a similar question that was asked earlier. I installed a new Facebook account on my laptop because I was hacked. But when I go to my desktop, it only shows the earlier account that was hacked. I have a similar problem with my iPhone although this time it keeps asking me for a security key/ thank you
iMac 21.5″, 10.12
I'm not quite sure what you mean by installing a Facebook account on your Mac.
Assuming you use Safari to log into an account whether it is with Facebook or anything else, I think what you will want to do is sign out of that account, and sign in to the new one.
If Safari is automatically populating a website's login information, you can change or delete that entry in Safari's Preferences... menu > AutoFill.
I'm not quite sure what you mean by installing a Facebook account on your Mac.
Assuming you use Safari to log into an account whether it is with Facebook or anything else, I think what you will want to do is sign out of that account, and sign in to the new one.
If Safari is automatically populating a website's login information, you can change or delete that entry in Safari's Preferences... menu > AutoFill.
