(translate here: "Connection is not safe. Wild.pl website owner configured it incorrect. Firefox program didn't connect it with this website, to protect user before information stealing."
(translate here: Failed to make safe connection. During try to connect with wilds.de server an error has occured. SSL communication user don't have certificate for wanted DNS name. Error code: SSL_ERROR_UNRECOGNIZED_NAME_ALERT.)
So as you can see, if you forgot ".io" end of website name, you can do mistake.
PS. I know it's not idea, but it's not a question, bug and idea. Rez has to add "Other" category of topic.
Customer support service by UserEcho