Examine source code of My task

{
  "manifest_version": 2,
  "name": "My task",
  "version": "1.0.1",
  "description": "A browser tool.",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_title": "Click Me",
    "default_icon": "icon.png"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7a1c2d81-31d6-48f1-8d71-15c7bc617ce1}"
    }
  }
}