Is there a way to change the default folder when bookmarking all tabs?
No and it wouldn't help because every time a new folder with that name would be created and you end up with multiple folders with the same name.
I'm not referring to the "Name: [Folder Name]" box. I'm referring to the "Folder: Bookmarks Menu" box.
You can only create bookmarks in one of the three root folders.
Where would you want to create them?
I would like it to default to "Bookmarks Toolbar." Currently I have to select the drop-down menu.
Sorry, but I don't know of a way to change the default location to the Bookmarks Toolbar folder.