Who should use Inspector?

Inspector is an open-source project built for firefox users and web developers.

Does Inspector have a free plan?

Yes — Inspector is open source under the Open Source license and free to use.

What platforms does Inspector run on?

Inspector runs on the web, embeddable surfaces, and Android.

Is Inspector still active?

Unverified. Inspector 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.

What are alternatives to Inspector?

Similar projects tracked by PulseGate include Privacy Inspector, Inspector, and Domain Inspector.

Inspector is developed by MLOP.

When did Inspector launch?

Inspector first shipped in 2025.

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Inspector

Name: Inspector
Author: MLOP

mozilla.orgBrowser DevTools & extensions

Inspector is a FOSS Firefox extension for reading and inspecting cookies and local storage across websites. It supports Firefox on desktop and Android and requires permissions to access browser tabs and website data.

Open SourceWebEmbeddableAndroid

Visit mozilla.org

Overview

4 features

Inspector sits in PulseGate's Browser DevTools & extensions category. It focuses on inspecting and managing website cookies and local storage without browser developer tools. It is built as an open-source project for firefox users and web developers. The project is open source (Open Source). Inspector is available on the web, embeddable surfaces, and Android.

It is developed by MLOP, and it first shipped in 2025. Key capabilities include cookie inspection, local storage inspection, and cross-site access. The interface is available in 32 languages, including Czech, German, and Greek.

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

Cookie inspection
Local storage inspection
Cross-site access
Firefox Android support

Built with & integrations

Runs on

BrowserEmbeddableAndroid

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed11 Sep · 02:29 UTC
Inspector verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Inspector

What does Inspector do?: Inspector focuses on inspecting and managing website cookies and local storage without browser developer tools. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Inspector?: Inspector is an open-source project built for firefox users and web developers.
Does Inspector have a free plan?: Yes — Inspector is open source under the Open Source license and free to use.
What platforms does Inspector run on?: Inspector runs on the web, embeddable surfaces, and Android.
Is Inspector still active?: Unverified. Inspector 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.
What are alternatives to Inspector?: Similar projects tracked by PulseGate include Privacy Inspector, Inspector, and Domain Inspector.Privacy Inspector Inspector Domain Inspector
Who makes Inspector?: Inspector is developed by MLOP.
When did Inspector launch?: Inspector first shipped in 2025.

At a glance

Pricing: Open Source
Platforms: Web
License: Open Source
Built for: Firefox users and web developers
Model: Open source
Solves: Inspecting and managing website cookies and local storage without browser developer tools.

Registered as

Firefox Add-ons: inspect

Developer

MLOP

Index record

Indexed: 11 Sep 2026
Lifecycle: Alive
Last seen: 11 Sep 2026

Identity audit (13)

Slug: inspector-mozilla-org
Lifecycle state recorded: 11 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 11 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
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: 11 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/inspect

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