By default TrackerBlock works completely locally, and does not transmit any information to any third-party. Tracker lists are maintained through updates to the add-on.
You have the option of sending tracker data to PrivacyChoice, which helps us monitor tracking activity across the web and improve our service to you. PrivacyChoice never captures or records your browsing history or associates any actions with your computer. The system only counts the number of times each tracking company is seen on each website.
All data vendors access data solely for our benefit and have agreed to confidential use and handling of data. We don't otherwise permit any third-party access to data. We and our data hosts employ security measures to protect data (none of which is perfect, unfortunately).
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