PunyCode Domain Detection

PunyCode Domain Detection

This extension attempts to detect PunyCode domain phishing attack (Alpha release)

PunyCode Domain Detection promo image
What is PunyCode Domain Detection?

PunyCode Domain Detection is a Firefox add-on that uses the punycode.js library to detect phishing attempts with unicode domains. It provides immediate notifications and protects users from potential phishing attacks. Compatible with Firefox 57 and later.

Stats date:
Users: 61 ▲ 6
Rating: 4.14 (7)
Version: 0.0.4 (Last updated: 2019-04-03)
Creation date: 2018-01-15
Weekly download count: 12
Firefox on Android: Yes
Manifest version: 2
  • activeTab
  • notifications
Size: 18.65K
URLs: Website
Risk impact: High risk impact
Risk likelihood: Low risk likelihood

Other platforms

Not available on Chrome
Not available on Edge

This extension attempts to detect phishing with unicode domains. Extension is based on useful javascript library punycode.js - https://github.com/bestiejs/punycode.js/

  • Release 0.0.4 - Added an additional immediate notification in web pages where there is a potential phishing attempt
  • Release 0.0.3 - WebExtension is supported by Firefox 57 and later. For older browser not work correctly
User reviews
by wesinator, 2021-03-15

It would be 5 stars if there is green/red icon for demonstration is there any punycode present. Unfortunately, in android version there is no option to show punycode. So it is almost the only way to check the address bar.

Vom Konzept ist diese Idee simple und klasse! TOP schon mal dafür! Zudem verhindert es, dass sich Laien unbemerkt auf Phishing Seiten bewegen und meldet Alarm. Was mir dabei fehlt ist die die Warnung oder ein Pop-Up Fenster, wie zum Beispiel "Heeey.. Sie bewegen sich gerade auf eine Seite, die nicht gleich der angegebenen Domain zu sein schein!" oder.. "Diese registrierte Domain enthält Sonderzeichen (in unserem Fall sind es Punycodes) und kann von der Echtheit abweichen!"
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Risk impact

PunyCode Domain Detection is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install PunyCode Domain Detection if you trust the publisher.

Risk likelihood

PunyCode Domain Detection has earned a fairly good reputation and likely can be trusted.

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