> работающий на локальной системе пользователя без обращения к внешним сервисам

Да ладно? А это что https://addons.mozilla.org/en-US/firefox/addon/firefox-trans.../ и даже тут полного списка нет, это же какое там описание зонда, раз ограничились "etc" ... довольные же хомяки побежали применять этот несмазанный дилдо

Mozilla receives information about your interaction with Firefox Translation, including(1) Event Data such as when the info bar is opened, translate button is pressed, etc.(2) Metric data such as language being translated from/to, words translated per minute, etc. (3) Interactions with Firefox Translation menus and icons,(4) Length of time the app is in the background.Technical data. We receive your device, operating system, version, and language preference, etc. Survey data. Your input on your experience and feedback of the translation service, if you answer the survey.We might share the data collected by this extension and the optional survey with other researchers working on the Bergamot Consortium (https://browser.mt/partners/) and might publicly publish results from the aggregate analysis.