Examine source code of Privacy Cleaner

{
  "manifest_version": 2,
  "name": "Privacy Cleaner",
  "version": "1.0",
  "description": "Quickly clear your browsing data such as cookies, cache, and history.",
  "permissions": [
    "browsingData"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icons/icon.png"
  },
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{93e5dfc7-5072-4886-8c38-168be9ef9d45}"
    }
  }
}