Try going to history..clear history 1st...get rid of cookies especially. Then try deleting whatever from your bookmarked list.

''''Thanks, but I've done all that. It just removes the icons but they still show in the sections where they were saved. I want them to be cleared completely.''''

Entries in the location bar drop down list with a yellow (blue on Mac) star at the right end are bookmarks.
You can remove such a bookmarked item that shows in the list if you open that url in a tab and click the yellow star in the location bar.
This will open the "Edit This Bookmark" dialog and you can click the Remove button to remove the bookmark if you want to remove such a bookmarked entry.

• Remove websites from the address bar suggestions
• Cannot clear Location bar history

Your both wrong, but thanks for trying. I found the solution myself. Open up your bookmarks, and check the ones you want to delete. Then click on the delete button. They will disappear from the bookmark section, but when you bring down the bookmark browser drop down window, the still show in the list. Go back to the bookmark button, and right click. Select Refresh Toolbar, and that is the fix. They are all gone.