Who should use Stream Navigator?

Stream Navigator is a consumer product built for firefox users who inspect or download streaming media resources.

Is Stream Navigator free?

Yes — Stream Navigator is free to use.

What platforms does Stream Navigator run on?

Stream Navigator runs on the web and embeddable surfaces.

Is Stream Navigator still maintained?

Unverified. Stream Navigator 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 projects are similar to Stream Navigator?

Similar projects tracked by PulseGate include Stream Finder, Stream Detector, and StreamWatch.

Who develops Stream Navigator?

Stream Navigator is developed by mu88app.

When did Stream Navigator launch?

Stream Navigator first shipped in 2023.

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Stream Navigator

Name: Stream Navigator
Author: mu88app

mozilla.orgBrowser DevTools & extensions

Stream Navigator is a Firefox browser extension that detects URLs to playlists and subtitles used by HLS, HDS, MPEG-DASH, and Smooth Streaming. It can monitor custom file types and Content-Type headers, download media files, and track browser downloads.

FreeWebEmbeddable

Visit mozilla.org

1alternative

8features

2023since

Overview

8 features

Stream Navigator is a Browser DevTools & extensions project. It focuses on finding and downloading streaming manifests, subtitles, and media files from browser-based streams. It is built as a consumer product for firefox users who inspect or download streaming media resources. It is available for free. Stream Navigator is available on the web and embeddable surfaces.

Behind Stream Navigator is mu88app, and it first shipped in 2023. Key capabilities include manifest detection, subtitle detection, and media downloads. The interface is available in 32 languages, including Czech, German, and Greek.

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

Manifest detection
Subtitle detection
Media downloads
Custom file types
Content-Type monitoring
Playlist tracking
Download history access
Browser notifications

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed18 Sep · 02:54 UTC
The Stream Detector verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Stream Navigator

What does Stream Navigator do?: Stream Navigator focuses on finding and downloading streaming manifests, subtitles, and media files from browser-based streams. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Stream Navigator?: Stream Navigator is a consumer product built for firefox users who inspect or download streaming media resources.
Is Stream Navigator free?: Yes — Stream Navigator is free to use.
What platforms does Stream Navigator run on?: Stream Navigator runs on the web and embeddable surfaces.
Is Stream Navigator still maintained?: Unverified. Stream Navigator 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 projects are similar to Stream Navigator?: Similar projects tracked by PulseGate include Stream Finder, Stream Detector, and StreamWatch.Stream Finder Stream Detector StreamWatch
Who develops Stream Navigator?: Stream Navigator is developed by mu88app.
When did Stream Navigator launch?: Stream Navigator first shipped in 2023.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who inspect or download streaming media resources
Model: B2C
Solves: Finding and downloading streaming manifests, subtitles, and media files from browser-based streams.

Registered as

Firefox Add-ons: stream-navigator

Developer

mu88app

Index record

Indexed: 18 Sep 2026
Lifecycle: Alive
Last seen: 18 Sep 2026

Identity audit (13)

Slug: the-stream-detector-mozilla-org-35gatt
Lifecycle state recorded: 18 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 18 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: 18 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/stream-navigator

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