Examine source code of Random GIF Generator

{
  "manifest_version": 2,
  "name": "Random GIF Generator",
  "version": "1.0",
  "description": "Generate a random GIF with a click!",
  "permissions": [
    "activeTab",
    "storage",
    "https://api.giphy.com/*"
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f28a409f-ec5a-4524-b766-d030b44c470d}"
    }
  }
}