# postLogger

> Extension to log postMessage()

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

## Overview

- **ID:** `postlogger`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** NDevTK
- **Category:** web-development,privacy-security
- **Daily users:** 7
- **Version:** 1.4
- **Last updated:** 2025-04-26
- **First published:** 2024-11-17
- **Size:** 27 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/postlogger/)
- **Website:** [https://github.com/NDevTK/postLogger](https://github.com/NDevTK/postLogger)

## Description

- <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/4a2d7cf286380b87796df1aae15457c339ed8b0a956c4a64db3d7ccb18016b82/http%3A//console.info" rel="nofollow">console.info</a> for postMessages from all_frames.
- detects the scope of sent messages.
- origins that are insecure due to being a sandbox domain or a wildcard, will be prefixed with UNSAFE.
- detects if a website does not check MessageEvent.origin
- MessageChannel API

May cause unexpected behavior so please use it in a different browser profile and disable when not wanted.

Code can be found at <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/af5343d2f32a28f80a768052f693cdcab85dc6426e6d16345fc222f12f5b53ad/https%3A//github.com/NDevTK/postLogger" rel="nofollow">https://github.com/NDevTK/postLogger</a>

## Rankings

- #38,977 — Overall
- #67 — post

## Permissions and access

### Content script matches

- `<all_urls>`

## Safety

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