Examine source code of Infinite Refresh

{
  "manifest_version": 3,
  "name": "Infinite Refresh",
  "version": "1.2.0",
  "description": "Privacy-first cleanup that bridges incognito & regular browsing",
  "browser_specific_settings": {
    "gecko": {
      "id": "infinite-refresh@infiniterefresh.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "authenticationInfo",
          "personallyIdentifyingInfo",
          "technicalAndInteraction"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "background": {
    "page": "background.html"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "action": {
    "default_title": "Infinite Refresh",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon-16.png",
      "48": "icon-48.png",
      "128": "icon-128.png"
    }
  },
  "permissions": [
    "contextMenus",
    "storage",
    "tabs",
    "alarms"
  ],
  "optional_permissions": [
    "cookies",
    "browsingData",
    "history",
    "bookmarks"
  ],
  "host_permissions": [
    "<all_urls>"
  ]
}