Examine source code of clear-data-min

{
  "manifest_version": 2,
  "name": "clear-data-min",
  "version": "1.0.0",
  "description": "Clear browser data",
  "icons": {
    "48": "icons/icon48.svg",
    "96": "icons/icon96.svg"
  },
  "permissions": [
    "notifications",
    "storage",
    "browsingData",
    "cookies",
    "contextualIdentities",
    "http://*/",
    "https://*/"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "browser_action": {
    "default_title": "clear-data",
    "default_popup": "popup/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{58ba1356-e372-41a4-abb4-74107f9a4a18}"
    }
  }
}