# Klaxon Cloud

> Klaxon Cloud sends you alerts when webpages you're watching change.

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

## Overview

- **ID:** `klaxon-cloud`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** MuckRock
- **Category:** alerts-updates
- **Daily users:** 16
- **Weekly downloads:** 1
- **Version:** 1.3.1
- **Last updated:** 2026-08-26
- **First published:** 2026-06-23
- **Size:** 473 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/klaxon-cloud/)
- **Website:** [https://muckrock.com](https://muckrock.com/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/klaxon-cloud/privacy/](https://addons.mozilla.org/firefox/addon/klaxon-cloud/privacy/)

## Description

Klaxon Cloud is a tool for journalists, researchers and civic creators to track changes to pages across the web. Powered by the Wayback Machine, Klaxon will monitor web pages for changes, notifying you when something's changed. With the Klaxon Cloud browser extension, you can:
<ul><li>create new alerts, optionally highlighting an area of the page to watch</li><li>see all alerts you've created for a website, then quickly jump to a page you're watching</li><li>manage alerts you've created, with the ability to edit or disable them</li></ul>
A free <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/ec41bf5be899d186636a2e2df218da0e91d69d64a67c114cdcd03561ef464119/https%3A//accounts.muckrock.com" rel="nofollow">MuckRock Account</a> is required for saving your alerts.

Klaxon Cloud is a project of the <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/4286ebc8abb3a9bd112c2626bde5b23e42b6944cd853ed15f1757b5fdd70d0b9/https%3A//muckrock.com/" rel="nofollow">MuckRock Foundation</a>: a nonprofit, collaborative organization and newsroom that brings together journalists, researchers and the public to request, analyze and share government information, making politics more transparent and democracy more informed.

## Rankings

- #27,202 — Overall
- #52 — cloud

## Permissions and access

### Permissions

- `scripting`
- `activeTab`
- `identity`
- `storage`
- `tabs`

### Host permissions

- `https://accounts.muckrock.com/*`
- `https://api.www.documentcloud.org/*`

### Content script matches

- `www.klaxoncloud.org`

## Safety

- **Risk impact:** Moderate 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 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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Source: [Chrome-Stats](https://chrome-stats.com/d/klaxon-cloud)