WebPageTest

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "WebPageTest",
  "description": "This extension launches WebPageTest for the current page",
  "version": "1.0",
  "icons": {
    "16": "wpt16.png",
    "48": "wpt48.png",
    "128": "wpt128.png"
  },
  "browser_action": {
    "default_icon": "wpt48.png",
    "default_title": "Test performance"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "options_ui": {
    "chrome_style": true,
    "page": "options.html"
  }
}