Examine source code of Auto Next Video

{
  "manifest_version": 2,
  "name": "Auto Next Video",
  "version": "7.0.0",
  "description": "Passe automatiquement au reel ou à la vidéo suivante sur Facebook, YouTube, Netflix, TikTok et plus.",
  "author": "Auto Next Video",
  "browser_specific_settings": {
    "gecko": {
      "id": "autonextvideo@extension",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "activeTab",
    "storage",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.facebook.com/*",
        "*://*.youtube.com/*",
        "*://*.netflix.com/*",
        "*://*.tiktok.com/*",
        "*://*.instagram.com/*",
        "*://*.dailymotion.com/*",
        "*://*.twitch.tv/*",
        "*://*.primevideo.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Auto Next Video",
    "default_icon": {
      "48": "icons/icon48.png",
      "96": "icons/icon96.png"
    }
  },
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  }
}