Is there any reason why eww doesn't use bookmark.el? I could not
found any explanation in eww.el nor the info documentation of
Emacs.
I'd prefer to have all my bookmarks available in a single buffer
and managed in a single place; And I am happy so far with
bookmark.el for usual bookmarks. Are you interested in eww to
support bookmark.el (could be through a customization variable for
example)?