PunyCode Domain Detection 1.0 — rewritten from scratch, for Firefox desktop and Android.

• Addresses are checked before the page loads, so a fake site is caught even when it does not answer.
• A full-page warning stays until you decide (no more notifications that disappear): go to the real site in one click, go back, or open anyway.
• Far fewer false alarms: legitimate international names such as münchen.de are no longer treated as phishing. Mixed alphabets, look-alike-only names and imitations of well-known sites (or your own) are stopped, using the Unicode UTS #39 security data.
• Also catches plain-letter tricks such as paypa1.com and rnicrosoft.com.
• The suspicious letters are highlighted and explained; the toolbar icon turns amber or red.
• New panel with a manual address checker, three protection modes, trusted sites and your own sites to protect. Light and dark themes.