Examine source code of TabNexus

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "version": "1.3.0",
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+Q",
        "mac": "Alt+Q"
      },
      "description": "__MSG_commandActionDesc__"
    }
  },
  "default_locale": "en",
  "author": "aghinouz@xhzpow.com",
  "description": "__MSG_extDesc__",
  "permissions": [
    "tabs",
    "contextualIdentities",
    "tabGroups",
    "cookies"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "TabNexus@xhzpow.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    },
    "default_popup": "popup.html",
    "default_title": "__MSG_extName__"
  }
}