Works fine but I'd welcome if there was an option to limit the volume range to 0-100%. I don't need the extra boost and the range of the slider for 0-100 is quite small.

This extension does a great job. A particular highlight for me is that you can turn down the volume on videos. I often find that videos are much too loud when you start them. It's always very unpleasant for me when videos start too loudly, but that's finally come to an end.

Does what it says on the tin. A separate make-up gain control would be usable, but the threshold seems to compensate accordingly.