First I'd love this add-on, and I willing to change from Chrome to Firefox by this, because I'm having a very very much Facebook, etc accounts. But still 1 thing I do not like this add-on cause I could not sort / move containers by my fav, plz dev this function for the users can move / sort containers by Alphabet / Order. Other, should sync by Firefox account cause I also have many PC / Laptop, it's difficult form submit one by one. Last, thanks for the team making this!