Rated 5 out of 5 stars

INDISPENSABLE add on for me :)
Very instructive and useful !
Still some bugs on ipv6, maybe my fault since i don't have native v6.

This review is for a previous version of the add-on (4.1.1.1-signed). 

please report any issues so I can investigate further

You might be right; there are lots of ISPs that don't support IPv6 yet, and plenty of hardware that has issues out there, so it might be on your end. However, it would be helpful if you or anyone else could report whatever IPv6 issues you may have on our forums so I can look into them and make sure there isn't a bug I need to fix:
flagfox.net/forum