Examine source code of Lemming.ai

{
  "manifest_version": 3,
  "name": "Lemming.ai",
  "version": "1.3",
  "permissions": [
    "cookies",
    "storage",
    "scripting",
    "activeTab"
  ],
  "host_permissions": [
    "https://api.lemming.ai/*"
  ],
  "action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "128": "assets/icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "firefox@lemming.ai",
      "strict_min_version": "42.0"
    }
  }
}