Examine source code of Quote popup

{
  "manifest_version": 2,
  "name": "Quote Extension",
  "version": "1.0",
  "description": "A Firefox extension that displays quotes about hard work and passive income.",
  "icons": {
    "48": "logo.png"
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b7d08671-1cc8-4a74-acaf-c083e9a146ad}"
    }
  }
}