@akox Top right is an box icon. There are all unpined. If you click on biscuit, will be pinned on panel near the icon box.

Great, it really works! Thank you very much!
For silly: the extension does not delete cookies (set automatic deletion of the browser cache when it is closed) or disable it. If you disable cookies, you will not be logged in to your favorite sites. Cleaning applications are better at using extensions. I can't believe you've never heard about Ccleaner, Wise Care, Advanced System Care, WinOptimizer!