Examine source code of Download Auto-Resume

{
  "manifest_version": 3,
  "name": "Download Auto-Resume",
  "version": "2.0",
  "description": "Instantly resumes interrupted downloads, waits quietly while you're offline, and restarts downloads that cannot be resumed.",
  "browser_specific_settings": {
    "gecko": {
      "id": "download-auto-resume@kiroshennaidu.github.io",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "downloads",
    "storage",
    "alarms",
    "notifications",
    "captivePortal"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}