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Preview of Manifest Viewer (DASH/HLS)

Manifest Viewer (DASH/HLS) by Bal Solutions

Viewer for DASH (.mpd) and HLS (.m3u8) manifests with syntax highlighting.

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About this extension
Inspect and troubleshoot HLS and MPEG-DASH manifests without leaving Firefox. Get formatted, syntax-highlighted views, clickable playlists with resolved relative paths, optional custom headers, and one-click copy. Auto-open on .m3u8/.mpd URLs, use a dark developer interface, and analyze MP4 atom structure. Built-in media compatibility checks and page manifest detection help media engineers, QA, and streaming teams work faster.

Features:
- Syntax-highlighted, formatted views for HLS (.m3u8) and MPEG-DASH (.mpd)
- Clickable playlist URIs with automatic relative path resolution
- Optional custom request headers for authenticated or special endpoints
- One-click copy of manifest contents as plain text
- Auto-open when visiting .m3u8 or .mpd URLs (optional toggle)
- Dark, developer-focused interface for comfortable reading
- MP4 atom/box structure inspection
- Browser media compatibility checker (codec/DRM support)
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Permissions and data

Required permissions:

  • Block content on any page
  • Download files and read and modify the browser’s download history
  • Access browser tabs
  • Access browser activity during navigation

Optional permissions:

  • Access your data for all web sites

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
1.3.3
Size
255.1 kB
Last updated
11 days ago (5 Dec 2025)
Related Categories
  • Web Development
Licence
Apache Licence 2.0
Version History
  • See all versions
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