Is Cleaner For Chrome safe?

Clears Chrome browsing data such as cache, history, cookies, downloads, and local storage items.

This extension provides a simple cleanup interface for removing several types of Chrome browsing data, including cache, cookies, browsing history, download history, form history, service workers, certificates, and related stored data. The description says it does not remove autofill form data, stored passwords, local filesystem and storage, plugin data, WebSQL, or IndexedDB data.