# security.txt file detector

> Check if a website provides a security.txt file.

Canonical page: [https://chrome-stats.com/d/security-txt-file-detector](https://chrome-stats.com/d/security-txt-file-detector)

## Overview

- **ID:** `security-txt-file-detector`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Olivier Debré
- **Category:** privacy-security
- **Daily users:** 1
- **Version:** 1.1
- **Last updated:** 2025-08-28
- **First published:** 2025-08-11
- **Size:** 12 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/security-txt-file-detector/)

## Description

The extension aims at helping ethical hackers to check easily and quickly if a website publishes a security.txt file (cf. RFC 9116 A File Format to Aid in Security Vulnerability Disclosure).
It does so by:
- showing a red (no such file) or green icon (file present);
- displaying its content.
Caveat: When a [root directory]/.well-known/security.txt file exists, its content is displayed without any syntax check.

Note to people intending to get in touch with me to “help my extension grow”, “drive growth for Firefox extensions”,...: don't waste your time, I definitely do not want to waste mine. This extension is, and will remain FREE.

## Rankings

- #120,334 — Overall
- #177 — security

## Permissions and access

### Permissions

- `activeTab`
- `tabs`
- `scripting`

### Host permissions

- `http://*/*`
- `https://*/*`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate 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/security-txt-file-detector)