When clicking on the "Save to Freshreader" add-on button, the add-on redirects you to the Freshreader website to save the currently open tab URL to your Freshreader account. You must be logged into the Freshreader website to save articles. If you are not logged in to Freshreader and click the add-on button, your current tab URL will not be saved, and you will be prompted to enter your 16-digit, anonymous Freshreader account number to continue.

This add-on does not collect any information - it merely redirects you to the Freshreader website upon being clicked on to save the current tab URL to the logged-in account on https://freshreader.app.