Mute Intercom - Mute annoying sounds from Intercom 🔕

Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.

Smart Tab Mute - Ensures that only one tab is playing sound at the same time

Keysmith - Create custom keyboard shortcuts for your Mac and the web

Relax - Mutes your internal speakers when disconnecting headphones 🎧

Power Menu for Finder - The workflow enhancing Finder extension for Mac