Not compatible after 7.0.1 Rated 4 out of 5 stars

This extension works great on versions of Firefox up to 7.0.1 but is broken on version 8.* or greater. Neither the address bar icon or toolbar button will show up. Same with completely clean install of Firefox on 3 different systems. Needs an update for 8.* compatibility. Try 4or6 instead for a working IPv6 indicator in Firefox 8.

This review is for a previous version of the add-on (0.6.6). 

An updated version for FF8 compatibility has been submitted to Mozilla, you can download this now from:

https://addons.mozilla.org/en-US/firefox/addon/sixornot/versions/?page=1#version-0.6.7

Thanks for letting me know it was broken, I'll not be trusting the automatic compatibility reports in future...