Thanks for the solution, but it shouldn't have to be done this way. It should be a basic option in the menus. In fact it shouldn't be an issue in the first place. Just shows to me how "great" Opera is, and I bet this wouldn't be the last problem I would have, and since I'm not advanced in technical matters (like most people) enough to figure out stuff like editing "Local State" file by myself, and I don't want to be asking for help every time something goes wrong, I will be avoiding this browser for now.
As for the Opera developers. Sort your sh*t out. You are losing users, with BS like this!