Is there a way to save different bookmark 'sets'?



I find that bookmarks beyond a certain number become unwieldy. I’d prefer to be able to ‘offload’ bookmarks ‘sets’ & restore them as needed.

Is there a way to save your bookmarks (together with their folder locations) in a way that allows them to be restored at will?

If so, what about the option to either add them to other existing bookmarks (e.g., ones that were created later), or to overwrite the currently-loaded bookmarks?