See: punycode phishing / homograph attacks They likely mean Unicode outside the ASCII range. Last I checked Firefox refuses to implement the "fix" for this typ

See: punycode phishing / homograph attacks They likely mean Unicode outside the ASCII range. Last I checked Firefox refuses to implement the "fix" for this type of attack because it is "culturally insensitive" and "treats English as a privileged language over other languages". This URL in Firefox should look like "apple.com": https://xn--80ak6aa92e.com/ https://xn--80ak6aa92e.com/