Awesome ScreenShot YouTube

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Awesome ScreenShot YouTube",
  "version": "1.0.3",
  "description": "Take a screenshot of any YouTube video with one click.",
  "icons": {
    "128": "/images/128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "script.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "images/*"
  ],
  "permissions": [
    "https://www.youtube.com/*",
    "webNavigation"
  ]
}