Media Controller

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Media Controller",
  "version": "0.22",
  "manifest_version": 2,
  "description": "An extension that gives you precise control of Chrome's native media player.",
  "offline_enabled": true,
  "icons": {
    "128": "128.png"
  },
  "page_action": {
    "default_icon": "128.png",
    "default_title": "Precisely control media playback",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "contentscript.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "tabs",
    "<all_urls>",
    "storage"
  ]
}