Examine source code of RememberAgain

{
  "manifest_version": 3,
  "name": "RememberAgain",
  "version": "1.1",
  "description": "Recover built-in password popup disabled by some extensions upon each startup",
  "icons": {
    "64": "icon64.png"
  },
  "permissions": [
    "privacy"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "tingchiyuen@live.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}