Examine source code of Tab Position Options

{
  "manifest_version": 2,
  "name": "Tab Position Options",
  "version": "1.0",
  "description": "Tùy chỉnh vị trí mở tab mới.",
  "icons": {
    "48": "icons/icon-48.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "icons/icon-48.png",
    "default_title": "Tab Options",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bf0a9ef9-6ef3-4694-ac88-4b01fa6096ca}"
    }
  }
}