Examine source code of mommachi

{
  "name": "Amazon Search",
  "version": "1.1resigned1",
  "manifest_version": 2,
  "description": "Provides multiple search options",
  "permissions": [
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "last.xml"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{12b81b7e-24c4-4500-83c6-f5c42d6ac6f5}"
    }
  }
}