# CloudWarning

> CloudWarning is a transparency-focused Firefox add-on that alerts you whenever a website uses Cloudflare’s infrastructure.

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

## Overview

- **ID:** `cloudwarning`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Steampixel
- **Category:** web-development,privacy-security
- **Daily users:** 2
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.2
- **Last updated:** 2025-12-11
- **First published:** 2025-11-21
- **Size:** 27 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/cloudwarning/)
- **Website:** [https://steampixel.de/firefox-plugin-cloudwarning](https://steampixel.de/firefox-plugin-cloudwarning)

## Description

Many sites rely on Cloudflare for performance and security, but this comes at the cost of routing nearly all traffic through a third party often without users noticing. Because Cloudflare terminates TLS connections as a reverse proxy, it can technically see all data passing through, meaning the connection is not truly end-to-end encrypted.

The add-on scans each visited page for Cloudflare headers or resources and displays a clear warning when Cloudflare is involved. This helps users make informed decisions about their data especially on sites where they might submit personal information.

CloudWarning is not an anti-Cloudflare tool. It is a tool for digital sovereignty. By revealing hidden intermediaries and their potential legal obligations under U.S. law, it empowers users with the transparency needed to understand who handles their data and to act accordingly.

## Rankings

- #60,284 — Overall

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `storage`

### Host permissions

- `*://*/*`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate 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 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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- [Encryption Status Monitor](https://chrome-stats.com/d/encryption-status-monitor) — 1 users

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