Rated 5 out of 5 stars

by miquelmatas on Dec. 7, 2016 ·

firefox 50 disables it because it's unsigned....

This review is for a previous version of the add-on (2.2.8). 

by Julien Fray (Developer) on Dec. 8, 2016 ·

The add-on is automatically signed by AMO.

You may reinstall it from this website (no data loss).