Sound Booster is a Firefox browser extension designed to enhance audio output, allowing users to increase sound levels up to 600%. This tool is perfect for those who find default audio levels insufficient while watching videos or listening to music on platforms like YouTube and Vimeo. It features a user-friendly interface that enables easy sound adjustments through a simple slider, ensuring that users can fine-tune their audio experience effortlessly.

The extension allows for individual tab volume control, meaning users can set different sound levels for each open tab. It also includes handy hotkeys for quick volume adjustments, making it convenient to use while multitasking. With a focus on privacy, Sound Booster does not collect personal data and operates entirely on the user's device, adhering to strict privacy standards. This makes it a reliable choice for anyone looking to enhance their multimedia experience.