Audio/Video Playback Speed Controller

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Audio/Video Playback Speed Controller",
  "short_name": "Playback Controller",
  "version": "1.1",
  "description": "A simple interface to control the playback speed of audio and video elements in a webpage.",
  "browser_action": {
    "default_title": "Playback Controller",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/fast_forward_16.png",
      "32": "icons/fast_forward_32.png",
      "64": "icons/fast_forward_64.png",
      "128": "icons/fast_forward_128.png",
      "256": "icons/fast_forward_256.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "activeTab"
  ],
  "icons": {
    "16": "icons/fast_forward_16.png",
    "32": "icons/fast_forward_32.png",
    "64": "icons/fast_forward_64.png",
    "128": "icons/fast_forward_128.png",
    "256": "icons/fast_forward_256.png"
  }
}