Steps to reproduce:
From a search, go to "More", the hover highlighting on "Share This Search" spills over the menu.
From a search, go to "More" -> "Customise" -> "Add shortcut", the query text box can then be dragged over the menu.
Localisation on "Customize" is also incorrect, my language is English and region is set to Australia but I notice there isn't an option for GB/AU English, just a note
Highlighting to not over spill. Draggable text box should force the UI to grow with it. Spelling of "Customize" should be localised to "Customise"
Firefox 116.0.2 (64-bit)