Yes for Windows users Ctrl + Shift + B will bet the bookmarks library. Or Ctrl +B or Ctrl + I will get a sidebar. There is also a couple of bookmark buttons for the toolbar one displays a dropdown list, the other a sidebar. (My sidebar one only works with the firefox button not the menubar, not sure if others have that problem or not)

You of course use a Mac and I think that uses

• Library Cmd + Shift + B
• Sidebar Cmd + B

• also see keyboard shortcuts

You can't set a keyboard shortcut to a specific bookmark or set focus to a bookmark on the Bookmarks Toolbar.

You can open the Bookmarks in the sidebar via Cmd+B like posted above and use the search bar to locate a bookmark or scroll to it.

Maybe I should also have mentioned "keywords" and they may be single characters, they may be utilised as a quick method of accessing a specific bookmark.

Cmd L will get focus in the location bar, the single char keyword should find the bookmark & return will got to it.

• see smart keywords