Great tool Rated 5 out of 5 stars
I have been using the old version for about 2 months, I recently found out that there is a sandbox version for ff3.5. You can download it from http://code.google.com/p/poster-extension/. It is a must have for RESTful webservice developers, you don't need to write scripts anymore in order to invoke your services. I hope version 2.0 be stable soon.This review is for a previous version of the add-on (2.0.0).