Examine source code of CloudFlare Purge Plugin

{
  "manifest_version": 2,
  "name": "CloudFlare Purge Plugin",
  "short_name": "CloudFlare Purge",
  "description": "This extension can purge the CloudFlare cache for the current page of your CloudFlare enabled website",
  "version": "1.5.2resigned1",
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "19": "icon.png",
    "48": "icon48.png"
  },
  "browser_action": {
    "browser_style": false,
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "activeTab",
    "storage",
    "http://*/",
    "https://*/"
  ],
  "applications": {
    "gecko": {
      "id": "{0a40b0aa-001b-41c9-a3d7-7f4c4fe77025}",
      "strict_min_version": "53.0"
    }
  }
}