Better Volume Booster is a multimedia add-on specifically designed for Firefox that allows users to boost the volume of any webpage. This open-source extension remembers the volume settings for each page, providing a seamless audio experience. It is particularly useful for those who frequently adjust volume levels while browsing different sites. Users can enjoy enhanced sound without the hassle of resetting volume levels every time they navigate away from a page.

However, it's important to note that Better Volume Booster has a limitation: it cannot boost the volume of webpages that contain DRM-protected content, such as those on Netflix or Spotify. This makes it an excellent tool for general web browsing but less effective for streaming services that require digital rights management. The add-on is free to use under a subscription-based model, offering an accessible solution for audio enhancement.