Mario Kart Countdown

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Mario Kart Countdown",
  "version": "0.0.2",
  "description": "Mario Kart race start sounds",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Mario Kart Countdown",
    "default_icon": {
      "16": "src/assets/16icon.png",
      "48": "src/assets/48icon.png",
      "128": "src/assets/128icon.png"
    }
  },
  "content_scripts": [
    {
      "js": [
        "src/marioKartarize.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "http://*/"
  ],
  "web_accessible_resources": [
    "mario.png",
    "portal-rules.png",
    "portal-rules.mp3",
    "MarioKartCountdown.mp3"
  ]
}