Erea Dictionary sends the word you choose to look up, and your selected lookup language, to Wiktionary in order to retrieve definitions, pronunciation, and etymology. Erea Dictionary does not collect analytics, does not sell data, and does not send data to the developer.

If word history is enabled, looked-up words and definitions are stored locally in Firefox storage on your device. You can disable history, clear it, or download it from the add-on settings.