Plugin works! Rated 5 out of 5 stars
It works perfectly with 3.6.3, and Options does not freezes like others saying! Uninstall your current version of Firefox. Download and install Firefox 3.59 from here:
Install latest version of Tinyurl 2.02 from his website: http://mozmonkey.com.
Install it in 3.59 and then run the latest Firefox setup 3.63 and it will work there as well.