It is nice that another function has been added for the reinforcement of the volume. However, in the standard output, the volume has been reduced by more than 50% so that the volume function must be forcibly switched on, so that one can even understand something from the video. Furthermore, the sound quality has been deteriorated by this function massive. It is sometimes so that you can not understand the language (the spoken) in some videos.

Further criticism is that if you click full screen, the video is stopped for 1-2 seconds as if it would be reloaded.

There are even more mistakes and bugs, but all listed here would not be possible. As soon as these bugs mentioned above is resolved immediately, there are several stars from me. Otherwise, these addon does not even earn a single star.