This extension only collects anonymous device browser information when Google Analytics is enabled. Saladict author will offer prioritized support to popular devices and browsers.
Extension settings are synced via browser sync services.
Notebook data is stored locally by default. User may choose third party sync services which may collect synced data.
Search text and releated cookies will be sent to third party dictionary services(just like how you would search on their websites). If you do not want third party services to collect you data, remove the dictionaries at “Dictionaries” settings.