Each time I open a media site on which there are videos, ie Youtube, the videos will always play at maximum volume. This is really very annoying. I would expect the default volume level to be 25% or at the last user-set volume level. I'm running Firefox 61.0.1 on Kubuntu. Plugins include HTTPS Everywhere, WebRTC Disable, UBlock Origin. This problem has been ongoing for many months, and for several previous versions of Firefox. Thank you for your excellent work on this outstanding open-source browser.