I was not a fan of the search shortcuts. But it took me quite a while to find out, that they had a checkboxe, that you can enable/disable
On the about:settings#search page, there are a lot of checkboxes. But they use a different style, when it comes to the shortcuts at the bottom of the page. You can't remove them all (Bookmarks, Tabs and History) by pressing "Remove".
My feedback and suggestion is therefore: Please make checkbox to Search Shortcuts more distinctive or identical to the rest, so it's more obvious, that it is a checkbox that can be unticked.
