Red Block - Red Block is a browser extension that lows you to block users from your Twitter account.
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.
Twitter One Click Block - Add a block button for a simple one click blocking.
NextDNS - Block ads, trackers and malicious websites on all your devices.
Twitter Block Chain - Chrome extension to block all followers/following on a page
AdBlock - Ad blocker for Chrome, Safari and Opera on desktop and Safari for iOS devices.