Examine source code of Tab Finder Syncer Auto

{
  "manifest_version": 2,
  "name": "Tab Finder Syncer Auto",
  "version": "1.0",
  "description": "Automatically find and sync open tabs across sessions.",
  "permissions": [
    "tabs",
    "storage"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{858de9f0-97d1-453e-a107-8d7e90d3a1d0}"
    }
  }
}