Better YouTube Watch History

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "background": {
    "page": "background.html"
  },
  "content_scripts": [
    {
      "css": [
        "css/style.css"
      ],
      "js": [
        "lib/jquery-1.8.3.min.js",
        "scripts/main.js"
      ],
      "matches": [
        "*://www.youtube.com/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "description": "Marks all Youtube videos you've already watched. Now with cloud sync!",
  "icons": {
    "16": "icons/icon_016.png",
    "32": "icons/icon_032.png",
    "48": "icons/icon_048.png",
    "128": "icons/icon_128.png",
    "256": "icons/icon_256.png"
  },
  "manifest_version": 2,
  "name": "Better YouTube Watch History",
  "permissions": [
    "history",
    "storage",
    "tabs",
    "https://www.youtube.com/"
  ],
  "externally_connectable": {
    "matches": [
      "*://www.youtube.com/*"
    ]
  },
  "version": "2.1",
  "content_security_policy": "script-src 'self' https://www.youtube.com https://*.ytimg.com; object-src 'self'"
}