It does seem to work. I think that one has to remember that acoustical and electronics engineers are going to measure actual increase in volume in dBs rather than %. Yet, it does work

WARNING:
Security risks: Installing this add-ons can potentially expose your personal data and device to security vulnerabilities. This is especially true if the add-on requires access to your social media account. This auto call to tiktok and likee in background whenever you open new tab and save some thing in your text field.

Unwanted content: This add-ons may display unwanted content or advertisements. This can be annoying and may detract from the overall user experience.

´pesima se traba y resetea la web donde estes

PERFECT and you will be shocked at 600 , this is great
update! lol i will even say Essential!!#

Stellt sich von selbst immer wieder zurück auf 100%. Damit praktisch unbrauchbar.

Ottimo e intuitivo anche per i non anglofoni

Super effective

Très efficace. Perso je l'utilise lorsque le son de certaines vidéo sur YT est trop faible...

Lightweight and functional - perfect!

Appears to force ebay pages to reload to ebay start page ...what a random bug.