Is Copy Cookies safe?

Copy Cookies reads every cookie for the active tab, including httpOnly ones, and copies them to your clipboard on click.

When you open the extension's popup or press its keyboard shortcut, it reads all cookies for the current site — including HttpOnly and Secure cookies that a webpage's own JavaScript cannot access — using the browser's cookies API. It serializes the cookie set as JSON and copies it directly to your system clipboard for you to paste elsewhere. The extension has no background script and makes no network requests; the data goes only to your local clipboard.