Firefox video volume booster

Quiet video, fixed.

Amplify compatible HTML5 video above the player’s normal limit. UVE gives you up to 2x volume in Free and up to 6x in Pro.

Volume boost3.5x

1x6x

Increase gradually to avoid distortion.

Clearer audio

Hear voices without maxing every device.

Useful when a video is mastered too quietly, your laptop speakers are weak, or dialogue is difficult to hear.

Bring quiet instructors forward without downloading the video or installing a desktop audio utility.

Boost low dialogue on compatible web players while keeping the control directly in your browser.

Combine volume and playback speed in templates, then remember different settings for different sites.

Responsible listening

Amplification can introduce clipping when the source is already loud. Start near 1x, increase slowly, and reduce the level if audio distorts.

Protect your hearing

Software amplification does not make headphones safer. Keep your device output at a comfortable level.