Who should use DevTools Media Panel?

DevTools Media Panel is an open-source project built for web developers and browser extension developers.

Does DevTools Media Panel have a free plan?

Yes — DevTools Media Panel is open source under the Open Source license and free to use.

What platforms does DevTools Media Panel run on?

DevTools Media Panel runs on the web and embeddable surfaces.

Is DevTools Media Panel still active?

Unverified. DevTools Media Panel has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

Who makes DevTools Media Panel?

DevTools Media Panel is developed by mjfroman.

When did DevTools Media Panel launch?

DevTools Media Panel first shipped in 2017.

Is DevTools Media Panel open source?

Yes — DevTools Media Panel is open source under the Open Source license.

Back to the index

DevTools Media Panel

Name: DevTools Media Panel
Author: mjfroman

github.comBrowser DevTools & extensions

DevTools Media Panel is an open-source Firefox developer tools extension that provides a dedicated panel for inspecting media resources in web pages. It is intended for web developers debugging browser-based audio and video behavior.

Open SourceWebEmbeddable

Visit github.com

Overview

4 features

In the Browser DevTools & extensions space, DevTools Media Panel takes a focused approach. It focuses on inspecting and debugging media resources in web pages without building custom browser tooling. DevTools Media Panel is an open-source project aimed at web developers and browser extension developers. The project is open source (Open Source). DevTools Media Panel is available on the web and embeddable surfaces.

Behind DevTools Media Panel is mjfroman, and it first shipped in 2017. Key capabilities include media inspection, devTools panel, and firefox integration.

Summary written by a language model from the project’s public pages.

Media inspection
DevTools panel
Firefox integration
Web extension

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed8 Sept · 17:52 UTC
DevTools Media Panel verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about DevTools Media Panel

What is DevTools Media Panel?: DevTools Media Panel focuses on inspecting and debugging media resources in web pages without building custom browser tooling. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use DevTools Media Panel?: DevTools Media Panel is an open-source project built for web developers and browser extension developers.
Does DevTools Media Panel have a free plan?: Yes — DevTools Media Panel is open source under the Open Source license and free to use.
What platforms does DevTools Media Panel run on?: DevTools Media Panel runs on the web and embeddable surfaces.
Is DevTools Media Panel still active?: Unverified. DevTools Media Panel has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
Who makes DevTools Media Panel?: DevTools Media Panel is developed by mjfroman.
When did DevTools Media Panel launch?: DevTools Media Panel first shipped in 2017.
Is DevTools Media Panel open source?: Yes — DevTools Media Panel is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 8 Sept 2026
Built for: web developers and browser extension developers
Model: Open source
Solves: Inspecting and debugging media resources in web pages without building custom browser tooling.

Registered as

Firefox Add-ons: devtools-media-panel

Developer

mjfroman

Index record

Indexed: 8 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 8 Sept 2026

Identity audit (13)

Slug: devtools-media-panel-github-com
Lifecycle state recorded: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 8 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 8 Sept 2026
Canonical URL: https://github.com/mjfroman/media-devtools-panel-react

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