# Dynamic Range Spy

> Monitor real-time audio dynamic range on any website to identify high-quality masters and avoid loudness-war compression.

Canonical page: [https://chrome-stats.com/d/dynamic-range-spy](https://chrome-stats.com/d/dynamic-range-spy)

## Overview

- **ID:** `dynamic-range-spy`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Hieu
- **Category:** other
- **Version:** 1.0.0
- **Last updated:** 2026-01-26
- **First published:** 2026-01-23
- **Size:** 12 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/dynamic-range-spy/)

## Description

Dynamic Range Spy is a Firefox extension that monitors and displays the dynamic range of audio playing on a tab in real time. The lightweight application doesn't recognize specific songs and is useful for producers and those learning mixing and mastering to check the compression of online music.

## Rankings

- #144,514 — Overall
- #171 — ad spy

## Permissions and access

### Permissions

- `audioCapture`
- `storage`

### Host permissions

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Captures visible content, which may expose user data displayed on the screen, posing a security threat.
- 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/dynamic-range-spy)