Examine source code of Alibris UK Orders button

{
  "manifest_version": 2,
  "name": "Alibris UK Order History button",
  "version": "1.1",
  "description": "Alibris UK Order History opens in a tab",
  "background": {
    "scripts": [
      "button.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "48": "icon.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0a277e93-65a6-432b-a95e-59bcffe748eb}"
    }
  }
}