Who should use FancyTracker?

FancyTracker is an open-source project built for web developers and security researchers.

Does FancyTracker have a free plan?

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

What platforms does FancyTracker run on?

FancyTracker runs on the web, embeddable surfaces, macOS, Windows, and Linux.

Is FancyTracker still active?

Unverified. FancyTracker 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 FancyTracker?

FancyTracker is developed by Zeetaz.

When did FancyTracker launch?

FancyTracker first shipped in 2025.

Is FancyTracker open source?

Yes — FancyTracker is open source under the Open Source license.

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FancyTracker

Name: FancyTracker
Author: Zeetaz

github.comBrowser DevTools & extensions

FancyTracker is an open-source Firefox extension that tracks and inspects postMessage events in web pages. It adds features inspired by the original FancyTracker Chrome extension and ports its Manifest V3 functionality to Firefox.

Open SourceWebEmbeddablemacOSWindowsLinux

Visit github.com

Overview

5 features

FancyTracker is a Browser DevTools & extensions project. It focuses on inspecting and understanding postMessage communication between web pages and frames. It is built as an open-source project for web developers and security researchers. The project is open source (Open Source). FancyTracker is available on the web, embeddable surfaces, macOS, Windows, and Linux.

Zeetaz builds and maintains FancyTracker, and it first shipped in 2025. Among its 5 catalogued features are postMessage tracking, event inspection, and additional tracker features.

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

postMessage tracking
Event inspection
Additional tracker features
Firefox integration
Manifest V3 support

Built with & integrations

Runs on

BrowserEmbeddablemacOSWindowsLinux

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen SourceFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed11 Sep · 09:28 UTC
FancyTracker-FF verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about FancyTracker

What does FancyTracker do?: FancyTracker focuses on inspecting and understanding postMessage communication between web pages and frames. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use FancyTracker?: FancyTracker is an open-source project built for web developers and security researchers.
Does FancyTracker have a free plan?: Yes — FancyTracker is open source under the Open Source license and free to use.
What platforms does FancyTracker run on?: FancyTracker runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is FancyTracker still active?: Unverified. FancyTracker 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 FancyTracker?: FancyTracker is developed by Zeetaz.
When did FancyTracker launch?: FancyTracker first shipped in 2025.
Is FancyTracker open source?: Yes — FancyTracker is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
Built for: web developers and security researchers
Model: Open source
Solves: Inspecting and understanding postMessage communication between web pages and frames.

Registered as

Firefox Add-ons: fancytracker-ff

Developer

Zeetaz

Index record

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

Identity audit (13)

Slug: fancytracker-ff-github-com
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: 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: 11 Sep 2026
Canonical URL: https://github.com/Zeetaz/FancyTracker-FF

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