Why the toolbar menue bookmarks do not work?

More detail would be useful

Can you see the bookmark menu ? Right Click on toolbar > Customise toolbar > Toolbars > Bookmarktoolbar > enable

or when you not working do you mean there are no icons or the icons do not function

All bookmarks are on the toolbar but when I click on them do not open the page.

Do they work from accessing the Bookmarks menu.

The Bookmarks toolbar can be hidden so you could see if hiding, clearing data settings and closing Fx then open and see what enabling Bookmarks toolbar may show.

How many bookmarks do you have on the bar?