Examine source code of Quick Clear Data

{
  "manifest_version": 2,
  "name": "Quick Clear Data",
  "version": "1.0",
  "description": "Quickly clear your browsing data with just one click.",
  "permissions": [
    "browsingData"
  ],
  "browser_action": {
    "default_icon": "icons/clear-48.png",
    "default_popup": "popup.html",
    "default_title": "Clear Browsing Data"
  },
  "icons": {
    "48": "icons/clear-48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1976fb1d-5dae-429a-88fc-0ae7dc5fbe17}"
    }
  }
}