There is an excellent article written by Ernestas Naprys who states be careful on using the handy adblocker, price tracker or spell checker extensions that might be risking your online safety! Ernestas came across a tool found at crxcavator.io that analyzes chrome extensions. They use “chrome.webRequest” API that is regarded as a critical risk. Please check out his online writing at https://cybernews.com/security/chrome-extensions-see-everything-cybersecurity-expert/ which explains it all. Enjoy the read!