I must say it's a shame that so many people can think of complaining of a free (gpl) software! Instead they should donate more to the developer, Giorgio Maone, who has dedicated so much of his time to develop a free security suite for Firefox, they should give him both more money and do bugfixing as testing to help him. This version, 10.x, is a complete rewrite of the earlier 5.x. Firefox has completely changed its addon system to a system which isn't allowing as much as before. The current 10.1.2 version is working good, but you can't and shouldn't compare it with 5.x because of the webextension API being so limited. So I hoping Giorgio can working through, and don't look at this site and its shameful complaints. Thank you Giorgio!