If you don’t want Alexa to follow your usage trails, you can turn the Alexa Toolbar off. Turning the Toolbar off prevents any information from being transmitted from your browser to Alexa.
You can find instructions for turning the toolbar off in this FAQ: How do I disable/hide the Alexa toolbar?
You may also uninstall the Alexa toolbar at any time. Please see our uninstall FAQs for help uninstalling.