Rated 2 out of 5 stars

I installed it because it claims to be able to modify shortcuts. I tried a few times to assign <ctrl>w to close the current tab but nothing changed. I did not give one star because I did not test the other features that it claims to have.

This review is for a previous version of the add-on (5.08). 

Please send request about your problem to forums mozillaZine:
http://forums.mozillazine.org/viewtopic.php?t=2828771