Muffler

Automatically ducks background YouTube tabs and restores the active tab to its full baseline.

Muffler automatically handles your audio workspace so you never have to manually pause or lower background tabs again. If you frequently listen to ambient music or lo-fi streams on YouTube while working, studying, or following video tutorials, Muffler is the seamless UX upgrade you need. Key Features: • Smart Auto-Ducking: Dynamically lowers the volume of background YouTube tabs to your custom percentage (defaults to 25%) the exact millisecond you focus on a new media tab. • Seamless Volume Restoration: Instantly restores your background tab to its exact original baseline volume the moment you switch back. • Dynamic Baseline Tracking: Change a video's native volume slider at any time. Muffler automatically recalculates your preferences without breaking the loop. • Context Preservation: Intelligent early-exit guards ensure that switching to non-media tabs (like GitHub, StackOverflow, or documentation) leaves your background audio untouched. • Multi-Monitor Support: Deep integration with window focus changes ensures flawless audio balancing even across multi-screen setups. Completely lightweight, built on Manifest V3, and respects your privacy with zero external tracking or data collection.