In Orion, when you have more than 12 favorites, only the first 12 are shown in the address bar popup, and there's no way you can access them unless you go back to the start page, which is very inconvenient.
In Safari, it's simply solved with a "Show All" option, which does as it suggests, and it remembers your choice as well so from now on you can always see all your favorites whenever you open the popup. Orion should add this.