Page Speed Manager

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Page Speed Manager",
  "description": "The extension allows to check the speed of different pages for one or several sites at the same time",
  "version": "0.0.6",
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "browser_action": {
    "default_icon": "icon-16.png",
    "default_popup": "index.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "permissions": [
    "storage",
    "https://gtmetrix.com/*",
    "http://gtmetrix.com/*",
    "https://www.googleapis.com/*",
    "http://www.googleapis.com/*",
    "https://webpagetest.org/*",
    "http://webpagetest.org/*"
  ]
}