@leocg
Wasn't anything I could do to help in the list of saved passwords, or logging out from the account. Even deleting the account didn't seem to do the trick. Then I cleared/wiped my entire browser history, and after that, I got a blank log in for google instead, and was able to set up the correct account.
Thanks, though, because your suggestion made me play around with it more, until the problem was finally solved.
@leocg
Thanks for the help. I checked the indicated path before but didn't see what I wanted. Making invisible files visible (shift command period) was the answer.
So you say that whenever you press + the zoom function activate ? Does it also happen when pressing - ? Does the "cmd + +" shortcut actually work ? If its not working then you certainly have Num + as shortcut for zooming.
You can try changing the shortcuts one the opera settings, see if the zoom shortcut is set to Num + and remove it if its the case.