Examine source code of Simple ToDo Manager

{
  "manifest_version": 2,
  "name": "Task Manager",
  "version": "1.0",
  "description": "A Firefox extension for managing your daily tasks with completion tracking",
  "permissions": [
    "storage",
    "tabs"
  ],
  "browser_action": {
    "default_title": "Task Manager"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "dsaravanannike@gmail.com",
      "strict_min_version": "58.0"
    }
  }
}