# IDN Safe

> IDN Safe is a browser extension which blocks internationalized domain names to prevent you from visiting probable fake sites.

Canonical page: [https://chrome-stats.com/d/idn-safe](https://chrome-stats.com/d/idn-safe)

## Overview

- **ID:** `idn-safe`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Aykut Çevik
- **Category:** privacy-security,alerts-updates
- **Daily users:** 292
- **Weekly downloads:** 4
- **Rating:** 5.00 / 5 (5 ratings)
- **Version:** 1.5
- **Last updated:** 2019-10-02
- **First published:** 2017-04-25
- **Size:** 159 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/idn-safe/)
- **Website:** [https://github.com/AykutCevik/IDN-Safe/issues](https://github.com/AykutCevik/IDN-Safe/issues)

## Description

IDN Safe is a powerful browser extension designed to protect users from phishing and spoofing attacks by blocking internationalized domain names (IDNs), also known as punycode domains. These domains can visually mimic legitimate sites due to their use of Unicode, making it easier for attackers to create fake websites that appear authentic depending on the font rendered. 

With IDN Safe enabled, suspicious IDN domains are blocked by default to prevent accidental visits to probable fake sites. Users have the flexibility to temporarily allow specific domains or whitelist trusted ones permanently. This tool enhances online security by identifying and mitigating risks associated with maliciously spoofed domains. For more information and feature requests, visit the [official GitHub repository](https://github.com/AykutCevik/IDN-Safe).

## Rankings

- #6,862 — Overall
- #195 — Alerts & Updates
- #3 — safe
- #94 — prevent
- #109 — sale
- #188 — domain

## Permissions and access

### Permissions

- `storage`
- `webRequest`
- `webRequestBlocking`
- `activeTab`
- `tabs`
- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [IDND](https://chrome-stats.com/d/idnd) — 30 users, 4.50 / 5
- [XNfire](https://chrome-stats.com/d/xnfire)
- [Unicode Domain Guard](https://chrome-stats.com/d/unicode-domain-guard) — 2 users
- [IDN-Warner](https://chrome-stats.com/d/idn-warner) — 41 users, 4.00 / 5
- [Punymax](https://chrome-stats.com/d/punymax) — 1 users
- [Block Unicode domains](https://chrome-stats.com/d/block-unicode-domains) — 5 users
- [Biniguard-scam-blocker](https://chrome-stats.com/d/biniguard-scam-blocker) — 1 users
- [SafeBrowse](https://chrome-stats.com/d/safebrowse) — 13 users, 5.00 / 5
- [DNS Medic](https://chrome-stats.com/d/dns-medic) — 15 users, 5.00 / 5
- [PunyCode Domain Detection](https://chrome-stats.com/d/punycode-domain-detection) — 79 users, 3.88 / 5
- [Precision Site Blocker](https://chrome-stats.com/d/precision-site-blocker)
- [Fake Anime Site Blocker](https://chrome-stats.com/d/fake-anime-site-blocker) — 182 users, 3.89 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/idn-safe)