Not working in OS X 10.6.8 and Firefox 30.0 Rated 5 out of 5 stars
Version 2.1.1 not working with 220.127.116.11 set as DNS on OS X 10.6.8 and Firefox 30.0. Performing the test does not bring back any error or result..
But very important plugin idea!
EDIT: Tried old 1.1.5 Version, which works quite fine...:-)