M3U8 Detector by Alberto Licea
Detects HLS streams (m3u8) on pages you visitDetect HLS (.m3u8) streams & video URLs, resolve IP-locked segments locally
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About this extension
M3U8 Detector is a lightweight, high-performance browser extension (Manifest V3) that automatically detects HLS (.m3u8) media streams and direct video files (MP4, WebM, MKV) on any website you visit.
Key Features:
- 🚀 Automatic Stream Detection: Sniffs HLS master/media playlists (.m3u8) and embedded video requests in real-time as you browse.
- 🛡 Local IP-Lock Resolution: Resolves playlist segments directly inside the browser background Service Worker using your local session and cookies, bypassing IP-locked 403 Forbidden playlist tokens.
- ⚡ Obfuscated Segment Handling: Built-in support for disguised CDN video chunks (such as PNG-wrapped media segments from TikTok CDN and others).
- 📌 Stream Pinning & Management: Pin favorite streams across tab navigations, inspect segment counts, copy URLs or session cookies with a single click.
- 🎨 Modern Theme-Aware UI: Clean floating sidebar panel built with Shadow DOM isolation so extension styles never interfere with host web pages.
Si quieres que suene más natural y profesional en inglés:
- 💾 One-Click Export: Export detected stream manifests as structured JSON files, ready for fast batch downloads with compatible scripts.
100% Private & Open Source:
- All request sniffing and segment resolution happens 100% locally in your browser.
- ZERO tracking, ZERO external telemetry, ZERO remote analytics, and NO external servers
Key Features:
- 🚀 Automatic Stream Detection: Sniffs HLS master/media playlists (.m3u8) and embedded video requests in real-time as you browse.
- 🛡 Local IP-Lock Resolution: Resolves playlist segments directly inside the browser background Service Worker using your local session and cookies, bypassing IP-locked 403 Forbidden playlist tokens.
- ⚡ Obfuscated Segment Handling: Built-in support for disguised CDN video chunks (such as PNG-wrapped media segments from TikTok CDN and others).
- 📌 Stream Pinning & Management: Pin favorite streams across tab navigations, inspect segment counts, copy URLs or session cookies with a single click.
- 🎨 Modern Theme-Aware UI: Clean floating sidebar panel built with Shadow DOM isolation so extension styles never interfere with host web pages.
Si quieres que suene más natural y profesional en inglés:
- 💾 One-Click Export: Export detected stream manifests as structured JSON files, ready for fast batch downloads with compatible scripts.
100% Private & Open Source:
- All request sniffing and segment resolution happens 100% locally in your browser.
- ZERO tracking, ZERO external telemetry, ZERO remote analytics, and NO external servers
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Permissions and data
Required permissions:
- Access browser tabs
- Access your data for all websites
Optional permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.16
- Size
- 69.69 KB
- Last updated
- 2 days ago (Sep 21, 2026)
- Related Categories
- License
- MIT License
- Version History
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The developer of this extension asks that you help support its continued development by making a small contribution.
The author assumes no liability for misuse.