uBlock Origin - Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird.
Polipo - A small and fast caching web proxy (a web cache, an HTTP proxy, a proxy server).
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.
ExaProxy - ExaProxy is a a high-performance non-caching proxy.
AdGuard - Surf the Web Ad-Free and Safely. Shield up!
Privoxy - Privoxy helps users to protect their privacy.