Secateur - Use Secateur if you want to temporarily or permanently block or mute (or both block and mute) a Twitter account and all its followers.

BlockParty - Real-time voice chat rooms from the creators of turntable.fm

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.

AdBlock - Ad blocker for Chrome, Safari and Opera on desktop and Safari for iOS devices.

uBlock Origin - Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird.