# Overtone Overtone is a simple and elegant browser addon to bring a volume control slider into the web interfrace of overcast.fm. It is simple and does not inject very much javascript or css. It does not require any special permissions. - https://www.crxsoso.com/firefox/detail/overtone/ - https://www.crxsoso.com/webstore/detail/overtone/mdmchiodppienobaicjdadhcmcjacbdp The Extension is Open Source under a MIT LIcense and avaible at https://github.com/KurzGedanke/Overtone.