Watch That Later

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Watch That Later",
  "version": "1.2",
  "description": "Increases your youtube watching experience with this add on.",
  "icons": {
    "64": "icons/icon.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "*://*.gaming.youtube.com/*",
    "*://*.youtube.com/*",
    "storage"
  ],
  "manifest_version": 2,
  "browser_action": {
    "default_icon": "icons/icon.png",
    "default_title": "Watch That Later",
    "default_popup": "popup/Popup.html"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/jquery.js",
        "scripts/YoutubePage.js"
      ],
      "run_at": "document_end",
      "matches": [
        "*://*.gaming.youtube.com/*",
        "*://*.youtube.com/",
        "*://*.youtube.com/*"
      ],
      "all_frames": true
    }
  ]
}