Convert to PDF New Tab

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Convert to PDF New Tab",
  "version": "1.0.0",
  "manifest_version": 2,
  "description": "Convert your documents to PDF with ease - right on your new tab page.",
  "homepage_url": "http://www.newtabtools.com",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "js/bg/config.js",
      "js/bg/background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "tabs",
    "storage",
    "topSites",
    "history",
    "unlimitedStorage",
    "*://*.newtabtools.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*.newtabtools.com/*",
        "https://*.newtabtools.com/*"
      ],
      "js": [
        "js/bg/ext.js"
      ]
    },
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "all_frames": true,
      "js": [
        "js/bg/config.js",
        "js/ads.js"
      ]
    }
  ],
  "chrome_url_overrides": {
    "newtab": "new_tab.html"
  }
}