Youtube Playlist Duration and Progress Calculator

Find out the total duration or length of the YouTube Playlist (lectures, tutorials, music, video clips) and see how much you have watched (also displayed as a progress bar).

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manifest.json

{
  "name": "YouTube Playlist Duration Calculator",
  "version": "1.1.0",
  "description": "Youtube Playlist Duration Calculator",
  "manifest_version": 2,
  "icons": {
    "16": "./img/icon16.png",
    "48": "./img/icon48.png",
    "128": "./img/icon128.png"
  },
  "browser_action": {
    "default_icon": "./img/icon16.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "run_at": "document_idle",
      "matches": [
        "https://www.youtube.com/playlist?list=*"
      ],
      "js": [
        "./src/content.js"
      ]
    }
  ],
  "permissions": [
    "tabs"
  ]
}