You are currently not in a private window.
When you browse in a Private Window, Firefox does not save:
Firefox will save your:
Private Browsing doesn’t make you anonymous on the Internet. Your employer or Internet service provider can still know what page you visit.
Some websites use trackers that can monitor your activity across the Internet. With Tracking Protection Firefox will block many trackers that can collect information about your browsing behavior.
Learn more about Private Browsing.