Sounded interesting so I installed it, restarted Forefox and the browser and tabs went uncontrollably berserk! Had to use Task Manager to close Firefox after which I carefully re-opened and removed this thing!

No funciona con el tema oscuro de firefox

The idea seems great, but maybe because of how FFQ implements theming now, there is a severe flashing when changing tabs, the whole interface flashes 2 times right in front of my face and its very irritating. Could not stand that. Also the colors are too bright because faveicons tend to be bright

Sounds good. Doesn't work.