Examine source code of YouTube Tabs Manager

{
  "manifest_version": 3,
  "name": "YouTube Tabs Manager",
  "description": "Manage all your YouTube videos from one tab.",
  "version": "1.0.2",
  "icons": {
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "64": "icons/icon64.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "tabs",
    "tabGroups",
    "scripting",
    "webNavigation"
  ],
  "action": {
    "default_title": "YouTube Tabs Manager",
    "default_icon": {
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "64": "icons/icon64.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "host_permissions": [
    "*://*.youtube.com/*"
  ],
  "author": "JF Studio",
  "homepage_url": "https://jfstudio.dev",
  "developer": {
    "name": "JF Studio",
    "url": "https://ko-fi.com/jfstudio"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "youtube-tabs-manager@jfstudio.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "collection": {
          "tabs": {
            "purpose": "The extension needs to access tabs information to list and manage YouTube video tabs in a centralized interface.",
            "usage": "The extension queries open tabs to identify YouTube videos and allows users to control playback (play, pause, close) from a single panel. Tab information is only used locally and is never transmitted to external servers."
          },
          "scripting": {
            "purpose": "Required to inject scripts into YouTube pages to control video playback (play, pause).",
            "usage": "The extension executes small scripts in YouTube tabs to interact with the video player. These scripts only control video playback and do not collect or transmit any user data."
          },
          "webNavigation": {
            "purpose": "Used to detect when YouTube pages are loaded to update the tabs list in real-time.",
            "usage": "The extension monitors navigation events on YouTube to keep the video list current. No browsing data is collected or stored."
          }
        },
        "privacy_policy_url": "https://jfstudio.dev/privacy-policies/youtube-tabs-manager/PRIVACY.md"
      }
    }
  }
}