Examine source code of Grabr Integration

{
  "manifest_version": 3,
  "name": "Grabr Integration",
  "version": "1.0.1",
  "description": "Intercepts browser downloads and routes them through the Grabr download manager.",
  "permissions": [
    "downloads",
    "storage",
    "notifications",
    "contextMenus",
    "alarms",
    "tabs",
    "nativeMessaging"
  ],
  "host_permissions": [
    "http://localhost/*",
    "http://127.0.0.1/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "grabr-integration@linuxctrl.org",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "options_page": "options.html",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "all_frames": true
    }
  ]
}