Rated 1 out of 5 stars

per Victor Terber el gen. 10, 2012 ·

"Extras"/Test-Pilot"/"All your studies" shows permanently "Loading, please wait..." without ever finishing.
This doesn't change even after re-download an full re-install.

Disappointing - the user intends to support Mozilla, and then even the feedback software is broken. Not so great...

This review is for a previous version of the add-on (1.3.4). 

per Firefox user beeb85 (desenvolupador) a feb. 5, 2012 ·

This is fixed in 1.3.5.