Im in a tank you're not!

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Im in a tank you're not!",
  "version": "1.0",
  "description": "You are not my dad!",
  "permissions": [
    "activeTab",
    "declarativeContent",
    "storage"
  ],
  "page_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/icon_16.png",
      "32": "images/icon_32.png",
      "48": "images/icon_48.png",
      "128": "images/icon_128.png"
    }
  },
  "icons": {
    "16": "images/icon_16.png",
    "32": "images/icon_32.png",
    "48": "images/icon_48.png",
    "128": "images/icon_128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "manifest_version": 2
}