Examine source code of Authorbase

{
  "manifest_version": 3,
  "name": "Authorbase",
  "version": "1.0.3",
  "description": "Connect your marketplaces using your existing browser sessions for use in the Authorbase app",
  "permissions": [
    "storage",
    "alarms"
  ],
  "optional_permissions": [
    "cookies",
    "tabs",
    "scripting",
    "notifications"
  ],
  "host_permissions": [
    "*://dev.authorbase.com/*",
    "*://beta.authorbase.com/*",
    "*://authorbase.com/*"
  ],
  "optional_host_permissions": [
    "*://*.amazon.com/*",
    "*://*.apple.com/*",
    "*://*.barnesandnoble.com/*",
    "*://*.draft2digital.com/*",
    "*://*.google.com/*",
    "*://*.ingramspark.com/*",
    "*://*.kobo.com/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon16.png",
      "32": "icon32.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "*://dev.authorbase.com/*",
        "*://beta.authorbase.com/*",
        "*://authorbase.com/*"
      ],
      "js": [
        "umu-bridge.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@authorbase.com",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ]
      }
    }
  }
}