Would be great to have a button that allows us to quickly show/hide the "Other Bookmarks" bar on Firefox browser for Desktops. Even better: the bar could show in multiple lines so that we can add even more bookmarks to it. Maybe an "autohide/show" function could work, but it looks like an easily accessible button to trigger it would do an even better job. We would benefit from a more free/clean space (quickly hiding the bar) and a better functionality/user experience (with multiple lines).