# S\_Detector

> Real-time phishing site detector using Google Safe Browsing, PhishTank, OpenPhish, and local heuristics.

Canonical page: [https://chrome-stats.com/d/s\_detector](https://chrome-stats.com/d/s_detector)

## Overview

- **ID:** `s_detector`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Si Thu Soe
- **Category:** privacy-security,search-tools,social-communication
- **Daily users:** 3
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 0.1.0
- **Last updated:** 2026-08-21
- **First published:** 2026-08-18
- **Size:** 70 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/s_detector/)

## Description

S_Detector checks every top-level page navigation against four layers of protection, in order:

<code>PhishTank cached feed — free public bulk feed, refreshed hourly, no API key required.
OpenPhish cached feed — same idea, second free source for redundancy.
Google Safe Browsing (live API) — real-time lookup against Google's threat list. Requires a free API key.
Local heuristics — punycode/homoglyph domains, brand lookalikes, non-HTTPS, IP-address hosts, excessive subdomains. Runs entirely offline.
</code>

If any source flags the destination, a full-page warning interstitial is shown (not a silent block) — the user can go back or choose to proceed.

## Rankings

- #53,052 — Overall
- #143 — detect

## Permissions and access

### Permissions

- `webNavigation`
- `storage`
- `alarms`
- `activeTab`
- `notifications`

### Host permissions

- `https://safebrowsing.googleapis.com/*`
- `https://data.phishtank.com/*`
- `https://openphish.com/*`
- `<all_urls>`

### Content script matches

- `*`

## Safety

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

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension was recently updated in the past month. New updates 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).

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- [Phishy.pro - Phishing | Malware Scanner](https://chrome-stats.com/d/phishy-phishing-malware-scan) — 93 users, 2.00 / 5
- [Anti-Phishing](https://chrome-stats.com/d/anti-phishing-extension) — 4 users

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