Won't install Rated 1 out of 5 stars

According to the page on Addons for Firefox, version 1.8 covers 3.6a1,
but it won't install& I get an error msg that says it's "not compatible with Namoroka 3.6a1."

And the author's support email address appears to be invalid.

This review is for a previous version of the add-on (1.8).