Play video in many website always with 100% volume. This edd-on resolves my problem.

Just what Firefox needed don't want to wake the family when playing a video early in the morning or late at night while they are all in bed. Firefox always defaults audio to 100% but this you can set to what volume you like and it stays that way brilliant thank you..

很棒很直接的插件，直接解決了我影片聲音太小的問題

Genau richtig um die Webseiten leise zu halten , Danke