Examine source code of AmazonAddressHiding

{
  "name": "AmazonProtector",
  "version": "1.0",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png"
  },
  "browser_action": {
    "default_icon": "icon16.png",
    "default_title": "JSamazonaddressmasker"
  },
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{693f5101-62d1-4906-a989-a7c2af451076}"
    }
  }
}