Rated 4 out of 5 stars

for this helpful Add-on and your effort to keep it updated! A brief question: what's the difference between two alpha versions? Hope any of them will pass Mozilla's exam soon. By the way, you replied to a wrong review ;-)

This review is for a previous version of the add-on (1.2.9). 

sanitized code is used in 1.2.9.3a. No new feature is implemented.