Firefox used so be super useful on Android, but since its redesign almost all its customizability has been gone. So sad.
In fact, it works both ways:
I can click on "bookmarks" and then on the bookmarklet, and it gets executed on the current page.
I can also start typing the bookmarklets name and then click on it in the suggestions. It then also gets executed on the current page.
Firefox used so be super useful on Android, but since its redesign almost all its customizability has been gone. So sad.