Declare permissions  |  Chrome Extensions  |  Chrome for Developers

{
  "name": "Permissions Extension",
  ...
  "permissions": [
    "activeTab",
    "contextMenus",
    "storage"
  ],
  "optional_permissions": [
    "topSites",
  ],
  "host_permissions": [
    "https://www.developer.chrome.com/*"
  ],
  "optional_host_permissions":[
    "https://*/*",
    "http://*/*"
  ],
  ...
  "manifest_version": 3
}