We also share aggregated, non-personal data and related usage information, which does not contain any personal information which can identify you or any other individual user, with third parties, including content providers, website operators, advertisers and publishers.
… and they’re tracking your searches, collecting massive amounts of telemetry, and using pocket that collects and sells your data.
All of which can be disabled.
Care to share the proof that Mozilla sells user data to anyone?
https://getpocket.com/privacy#sharing
From the pocket privacy policy