Examine source code of Random Quote Popup

{
  "manifest_version": 2,
  "name": "Random Quote Popup",
  "version": "1.0",
  "description": "Display a random motivational quote in the popup.",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png",
    "default_title": "Random Quote"
  },
  "permissions": [],
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7f3589b3-1a6e-4d25-8d0e-f3728487d51c}"
    }
  }
}