Beware of Phishing Attacks
IDN Attacks seem to be back gain:
"This loophole allowed the researcher to register a domain name xn--80ak6aa92e.com and bypass protection, which appears as “apple.com” by all vulnerable web browsers, including Chrome, Firefox, and Opera, though Internet Explorer, Microsoft Edge, Apple Safari, Brave, and Vivaldi are not vulnerable."
https://thehackernews.com/2017/04/unicode-Punycode-phishing-attack.html
There's the IDND AddOn for Firefox which warns you...