Happy little extension

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Happy little extension",
  "description": "A fun little prank extension that plays a youtube video of your specification in the background every time someone loads a webpage.",
  "version": "0.1",
  "icons": {
    "16": "./client/images/icons/16.png",
    "48": "./client/images/icons/48.png",
    "128": "./client/images/icons/128.png"
  },
  "browser_action": {
    "default_icon": "./client/images/icons/16.png",
    "default_title": "Happy little extension",
    "default_popup": "client/popup.html"
  },
  "background": {
    "scripts": [
      "./js/background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "css": [
        "./css/styles.css"
      ],
      "js": [
        "./js/contentScript.js"
      ]
    }
  ]
}