Search engines icons disappear Rated 4 out of 5 stars

Same problem for me with stop&reload button, but I have another problem: the search plugin orizontal bar that appeared when i clicked the icon in the search bar, now shows only 7 search engines instead of 20 that I really have and there's no way to show the others.

This review is for a previous version of the add-on (3.0.0.52).