It would be very user friendly to replace "Remove" by "Delete" in all menus where also "Rename" is listed. User can very easy select wrong task as Remove and Rename on quick looks very similar. This can create a whole mass in the bookmarks *i.e. instead of Rename, by mistake using Remove.
You see that in existing bug report you have 570 votes for "Undo bookmark remove".
I am quite sure that most accidentally removed bookmarks and even a whole collection is due a fact having "Rename"and Remove" in the same menu. Please use #Delete# instead of "Remove".