Examine source code of theCleaner

{
  "manifest_version": 3,
  "name": "theCleaner",
  "version": "2.9.6",
  "description": "Clears selected browsing data, plus automated cookie cleaning with whitelist.",
  "permissions": [
    "browsingData",
    "tabs",
    "history",
    "cookies",
    "downloads",
    "scripting",
    "storage",
    "alarms"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "thecleaner@yoursite.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon.png"
    }
  },
  "icons": {
    "16": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  }
}