1. Install tampermonkey from [tampermonkey.net](https://www.tampermonkey.net)
2. Install the userscript by clicking [volume slider userscript](https://code.fbi.h-da.de/istddmue2/bbb-volume-slider-userscript/-/raw/master/bbb-volume-slider.user.js). This should prompt the installation.
2.1. __You should always look at the code before installing userscripts__
3. Profit
3. __Make sure to always look at the code before installing userscripts__