Puntuado con 5 de 5 estrellas
I'm also only getting the white box on startup. Right click > Quick Search Bar options > OK solves the problem. White box comes back when you restart your computer.
I'm not the right person to help fix the problem though; I use so many addons my Firefox is a veritable glitch-fest!
I also have a weird issue where the search bar icons are squished widthways (ratio 3.5mm tall by 2.5mm wide), but this does not bother me sufficiently to try to fix it and glitches are inevitable when you use dozens of addons.
Overall, still a genius idea for an addon. Brilliant.