Frequently asked questions

The extension does not appear after installation.

Reload the current webpage and confirm that the extension is enabled in Chrome. After an update, close and reopen the tab, then try Kadou again.

Why can’t I save a word?

Sign in on the Kadou web app first. The extension syncs the session from the open Kadou page and does not use a separate password.

A word has no lookup result.

Dictionary coverage varies by service. Check the selected text, try again later, or enter the meaning manually.

The selection or lookup card looks wrong.

Reload the page first. If the issue continues, send your browser version, reproduction steps, and a screenshot without private content.

How do I delete my data?

Delete words or decks from Kadou’s Manage view. To request account deletion, email us. See the privacy policy for data handling details.

Report an issue at guagualab2026@gmail.com with your browser, operating system, steps, and any necessary screenshot. Never send passwords or private page content.