Keyword Harvester tool for Amazon

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Keyword Harvester tool for Amazon",
  "version": "0.0.1",
  "manifest_version": 2,
  "description": "Keyword Harvester tool for Amazon",
  "icons": {
    "16": "images/icon-16.png",
    "128": "images/icon-128.png"
  },
  "default_locale": "en",
  "permissions": [
    "tabs",
    "contentSettings",
    "cookies"
  ],
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://completion.amazon.com/*",
        "*://completion.amazon.co.uk/*",
        "*://completion.amazon.cn/*",
        "*://completion.amazon.co.jp/*",
        "*://www.amazon.com/*"
      ],
      "js": [
        "scripts/contentscript.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "scripts/background.js"
    ],
    "persistent": false
  },
  "content_security_policy": "script-src 'self' https://connect.facebook.net/; object-src 'self'",
  "browser_action": {
    "default_icon": {
      "19": "images/icon-19.png",
      "38": "images/icon-38.png"
    },
    "default_title": "Keyword Harvester tool for Amazon"
  }
}