# Publisher Tag Debugger

> Publisher Tag Debugger ExtensionA modern browser extension for debugging Google Ad Manager (GAM) publisher tags. Inspect ad slots, targeting parameters, and response information directly in your browser's side panel.

Canonical page: [https://chrome-stats.com/d/publisher-tag-debugger](https://chrome-stats.com/d/publisher-tag-debugger)

## Overview

- **ID:** `publisher-tag-debugger`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** thyngster
- **Category:** web-development
- **Version:** 0.0.1
- **Last updated:** 2025-12-25
- **First published:** 2025-12-22
- **Size:** 74 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/publisher-tag-debugger/)
- **Website:** [https://www.analytics-debugger.com](https://www.analytics-debugger.com/)

## Description

Features
- Ad Slot Detection - Automatically scans pages for Google Ad Manager slots via the googletag API
- Slot Analysis - View ad unit paths, sizes, network codes, and MCM parent IDs
- Fill Status - Instantly see which slots are filled vs. empty with stats dashboard
- Targeting Inspector - Examine page-level and slot-level targeting key-value pairs
- Response Details - View advertiser, campaign, creative, and line item IDs for filled slots
- Visual Highlighting - Click to highlight any slot on the page with an animated overlay
- Dark Mode - Automatic system preference detection with manual toggle
- Cross-Browser - Works on Chrome (MV3) and Firefox (MV2)

## Rankings

- #139,819 — Overall
- #58 — publish

## Permissions and access

### Permissions

- `scripting`
- `tabs`
- `<all_urls>`

## 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/publisher-tag-debugger)