Youtube Playlist Total Duration Calculator

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Youtube Playlist Total Duration Calculator",
  "version": "3.2.3",
  "description": "this extension is calculating total time of all videos in youtube playlist which you are watching. enjoy it!",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*list*",
        "*://*.youtube.com/playlist*"
      ],
      "js": [
        "yptd.js"
      ]
    }
  ],
  "background": {
    "matches": [
      "https://*.youtube.com/*list*",
      "https://*.youtube.com/playlist*"
    ],
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "https://*.youtube.com/*",
    "webNavigation",
    "tabs"
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "64": "images/icon64.png",
    "128": "images/icon128.png"
  }
}