There’s a much better way to edit the bookmarks, by using the Flat Bookmark Editor extension, which eliminates all the popup dialog editing.
When you open up the Bookmarks Manager, now you’ll see a new panel at the bottom where you can easily edit the selected bookmark.
You can turn the new panel on/off by using the View \ Properties menu item, or hitting the Ctrl+P shortcut.
Note that this extension won’t be useful in Firefox 3 because of the redesigned “Places” feature.
Download Flat Bookmark Editing extension from Mozilla Add-ons
