# Flash Debugger

> Debug Flash/SWF/Flex files on the web. Edit properties and inspect elements on the fly. View log output inside the extension. Run AS3 code against the active SWF. Profile memory consumption and much much more...

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

## Overview

- **ID:** `flash-debugger`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** O-Minds
- **Category:** web-development
- **Daily users:** 723
- **Weekly downloads:** 6
- **Rating:** 4.09 / 5 (22 ratings)
- **Version:** 6.0.8
- **Last updated:** 2020-06-19
- **First published:** 2016-04-04
- **Size:** 1.08 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/flash-debugger/)
- **Website:** [http://o-minds.com/flash-debugger](http://o-minds.com/flash-debugger)

## Description

Flash Debugger is an advanced extension designed for debugging AS3 Flash, SWF, and Flex files directly within your browser. As the successor to FlashFirebug, it integrates with Firefox's devtools to allow real-time inspection and modification of DisplayList objects, run-time property edits, and viewing of warnings, errors, and trace outputs. The extension features a SWF Inspector for element inspection akin to HTML debugging, a console to execute AS3 commands on active SWFs, and a powerful 3D transformation tool for free transform, rotate, and translate actions.

Additionally, Flash Debugger includes a profiler to analyze memory consumption and identify performance bottlenecks within your SWF files. This paid extension offers a two-day trial and requires the Flash Player Debugger for Netscape-compatible browsers. For developers working extensively with Flash content, Flash Debugger provides an indispensable, all-in-one debugging and profiling environment.

## Rankings

- #4,048 — Overall
- #11 — debug
- #13 — adobe flash
- #13 — flash
- #24 — flashcards
- #44 — property

## Permissions and access

### Permissions

- `webRequest`
- `activeTab`
- `browserSettings`
- `tabs`
- `theme`
- `storage`
- `nativeMessaging`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Low 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).

## Review summary

### Pros

- Useful for developers
- Easy to use
- Cleans out bugs effectively

### Cons

- Requires payment to view certain features
- Limited to specific user groups

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