Brilliant add-on Rated 5 out of 5 stars

It's a brilliant add-on.
However, it stopped working with YouTube. :-(
EDIT: I confirm that deleting cookies for YT and reloading the page helps. V DH works with YT after that again.

This review is for a previous version of the add-on (4.9.9). 

Rated 5 out of 5 stars

Essential add-on. To temporarly override "preferences bug" in FF 2.0, downgrade to version 3.5.1

This review is for a previous version of the add-on (4.0.2).