Examine source code of SpendWise

{
  "manifest_version": 2,
  "name": "SpendWise",
  "version": "1.0",
  "description": "A simple spending tracker extension for managing your daily expenses.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{60edd65d-964a-421f-9365-316ec3e407c8}"
    }
  }
}