# CSP Checker

> "CSP Checker" is a Firefox addon designed to help users verify and analyze the Content Security Policy (CSP) settings of web pages they visit. It allows users to easily inspect and understand the CSP directives implemented by website developers

Canonical page: [https://chrome-stats.com/d/csp-checker](https://chrome-stats.com/d/csp-checker)

## Overview

- **ID:** `csp-checker`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Removed
- **Publisher:** BJ88
- **Daily users:** 17
- **Version:** 1.0
- **Last updated:** 2024-04-01
- **First published:** 2024-03-31
- **Size:** 7.97 KB
- **Data as of:** 2026-05-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/csp-checker/)

## Permissions and access

### Permissions

- `tabs`
- `webRequest`
- `webNavigation`

## 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 is not longer available in the store

> 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

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- [CSP Evaluator](https://chrome-stats.com/d/csp-evaluator) — 370 users, 4.00 / 5
- [Content Security Policy (CSP) Generator](https://chrome-stats.com/d/csp-generator) — 582 users, 4.00 / 5
- [CSP Evaluator Content](https://chrome-stats.com/d/csp-evaluator-content) — 1 users
- [CSP Content Security Policy Generator](https://chrome-stats.com/d/content-security-policy-gen) — 253 users, 3.40 / 5
- [cSPY - SecurityHeader Scanner](https://chrome-stats.com/d/cspy) — 33 users, 5.00 / 5
- [Script Sentinel - CSP Generator](https://chrome-stats.com/d/script-sentinel-csp-generator)
- [Quick CSP - Whitelist Generator](https://chrome-stats.com/d/quick-csp-whitelist-generator) — 1 users
- [HSTS Checker](https://chrome-stats.com/d/hsts-checker) — 25 users
- [CSS Validation Checker](https://chrome-stats.com/d/css-validation-checker) — 6 users

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