Rated 2 out of 5 stars

There really is no way around it when "Disable Add-on Compatibility Checks" isn't compatible with Firefox 8. :x
I'm sure that you need to use this one carefully, as there's ...-usually- a reason as to why something is marked incompatible, but with that in mind then, it should be compatible with newer versions, because we certainly can't use this add-on on itself. (that would be redundant or paradoxical)