stop youtube ads

manifest.json

{
  "manifest_version": 2,
  "name": "stop youtube ads",
  "version": "2.0",
  "description": "for stop youtube ads!.",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "ads.png",
    "48": "ads.png",
    "128": "ads.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.mozilla.org/*"
      ],
      "js": [
        "background.js"
      ]
    }
  ],
  "page_action": {
    "browser_style": true,
    "default_icon": {
      "128": "ads.png"
    }
  }
}