Per-tab volume booster add-on for Firefox
Vol Boost, from DevSOA, is a Firefox add-on that raises tab audio levels beyond system limits for quieter streams and calls. The extension amplifies audio using the Web Audio API and exposes a 0–600% slider plus quick presets for fast adjustments. It remembers volume per tab and ships as a compact ~17 KB package. The target audience is listeners with low laptop speakers, users in noisy environments, and anyone needing louder browser-based audio.
What does Vol Boost change about browser audio?
Vol Boost converts the browser audio path into an adjustable output per tab. It hooks into the Web Audio API to allow amplification up to 600%, and the interface offers both a continuous slider and one-tap preset buttons. The extension is designed to operate on any web page that hosts audio or video, so streaming sites and web conferencing pages are included in its scope.
How much granularity does it give over individual tabs?
Control is both fine-grained and quick to apply. Users get a 0%–600% slider for precise levels plus preset buttons at 0%, 100%, 200%, 400%, and 600% for instant changes. The extension stores the chosen level for each tab and restores that level automatically when you return to a page, making repeated tuning unnecessary for recurring sites.
Does Vol Boost impact browser performance or privacy?
The design prioritizes a small footprint and minimal background activity. The extension's package is roughly 17 KB and is described as a lightweight architecture intended to protect browser performance. The developer states there is no background tracking or data harvesting, reducing privacy concerns commonly associated with persistent add-ons.
Can you use Vol Boost on phones and across desktop platforms?
Compatibility spans desktop installs and Firefox for Android. The extension supports Firefox on Windows, macOS, and Linux, and is explicitly compatible with Firefox for Android, making it one of the few volume boosters available on that mobile platform. That cross-platform support lets the same add-on handle browser audio on both portable and desktop devices.
Vol Boost is a focused choice for louder in-browser audio
Vol Boost suits listeners who need louder browser audio without external hardware; its open-source MIT license and a perfect five-star rating on the Firefox Add-ons store indicate transparent development and strong user approval. The extension is best for people comfortable using browser add-ons rather than system-level audio utilities. Evaluate it if you prefer lightweight, store-reviewed tools that keep adjustments confined to the browser.




