By default now, Mozilla’s Firefox web browser protects you from trackers that gather your browsing history, cross-site tracking cookies that follow you from site to site, cryptominers that secretly use your device’s resources to mine cryptocurrency and fingerprinters that uniquely identify you based on your device, settings and apps.
Firefox now comes with a privacy report that gives you a real-time view into how frequently websites try to gather information about you without your consent.
To view your report, in the address bar, click the shield over on the left. Down toward the bottom, tap Protection Settings to manage how Firefox protects you.
At the very bottom, tap Show Report to view a day-by-day report of trackers Firefox has blocked.