With the address change to the new site I had to type a lot ( and I am lazy by nature), so I found this article from Mozilla telling how to delete single entries from their "awesome bar" ( as they call it). There are also ways to clear single site only data, and complete erasing of all history in this article.
https://support.mozilla.org/...some-bar-suggestions
Clearing a single item from the
Location bar history
- To clear a single item in the Location bar history, click the drop-down arrow in the Location bar.
- Press the ↓ down arrow key or move the mouse, to highlight the entry to delete.
- To clear the highlighted item,hold down the Shift key and press Delete on your keyboard.
