uBlock Origin - Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird.
DataMask.tech - Mask private data before taking screenshots
Adblock Plus - AdBlock Plus is a browser extension for Firefox, Chrome, Opera, and several other popular browsers that prevents intrusive ads like pop-ups and malicious code from appearing on websites you visit.
Image Blur - Hide your sensitive data with a click
AdGuard - Surf the Web Ad-Free and Safely. Shield up!
GitGuardian - Detect secrets in source code, public and private!