Huh? All it means is that the site you are trying to visit may be an imposter. Since you don't even know who the site is in the first place, does it matter to y

Huh? All it means is that the site you are trying to visit may be an imposter. Since you don't even know who the site is in the first place, does it matter to you if someone is impersonating that site? Of course not. Feel free to accept the self-signed cert, there is no security worries there. If you go to your bank's website - or anything at all with private data - then you need to make sure it isn't self signed.