Examine source code of Old Reddit Offline Video Download

{
  "manifest_version": 3,
  "name": "Reddit Video Downloader",
  "version": "1.0.0",
  "description": "Download Reddit-hosted videos with audio, entirely in your browser.",
  "author": "Jared Dishman",
  "permissions": [
    "downloads"
  ],
  "host_permissions": [
    "*://*.redd.it/*",
    "*://www.reddit.com/*",
    "*://old.reddit.com/*"
  ],
  "background": {
    "scripts": [
      "lib/mp4box.all.min.js",
      "background/mp4remux.js",
      "background/fetcher.js",
      "background/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.reddit.com/*",
        "*://old.reddit.com/*"
      ],
      "js": [
        "content/content-old.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "matches": [
        "*://www.reddit.com/*"
      ],
      "js": [
        "content/content-new.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "reddit-video-dl@jareddishman",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}