# ThirdEye — Web Security Scanner

> Real-time web security scanner. Detects XSS, CSRF, CSP issues, insecure cookies, vulnerable libraries, sensitive data exposurPassive web security scanner. Detects XSS, CSRF, CSP issues, insecure cooe, PCI DSS compliance, and 20+ checks on every page.

Canonical page: [https://chrome-stats.com/d/thirdeye-web-security-scanner](https://chrome-stats.com/d/thirdeye-web-security-scanner)

## Overview

- **ID:** `thirdeye-web-security-scanner`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** ThirdEye Security
- **Category:** web-development,privacy-security,alerts-updates
- **Daily users:** 1
- **Weekly downloads:** 1
- **Version:** 3.1.0
- **Last updated:** 2026-06-17
- **First published:** 2026-06-14
- **Size:** 42 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/thirdeye-web-security-scanner/)
- **Website:** [https://thirdeye-intelligence.github.io/](https://thirdeye-intelligence.github.io/)

## Description

Passive web security scanner. Detects XSS, CSRF, CSP issues, insecure cookies, vulnerable JS libraries, and 20+ checks on every page. No data leaves your browser.

## Rankings

- #125,937 — Overall
- #136 — security

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `tabs`
- `webRequest`
- `scripting`
- `http://*/*`
- `https://*/*`

### Content script matches

- `*`

## Safety

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

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Source: [Chrome-Stats](https://chrome-stats.com/d/thirdeye-web-security-scanner)