Examine source code of Google authuser fix

{
  "manifest_version": 2,
  "name": "Google authuser fix",
  "version": "0.1",
  "description": "Automatically changes authuser parameter in Google URLs to desired account.",
  "permissions": [
    "webNavigation",
    "tabs",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "authuser_fix@trymoto.dev",
      "strict_min_version": "58.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icons/48.png"
  }
}