Every (EVERY) Browser Extension sends data to surveillance .. which one your browser already sends without any extension you can find out here ..
https://browserleaks.com
and what you send to your BigBrother databases ..btw Firefox/Mozilla and Google - the biggest spy machines currently .. use BRAVE Browser and log in via the inbuilt login-service .. just saying !
Welcome to 2022 - the Year we turn(ed) the world around!