Another feature I'd like to add: a global "history" file.
It would record all visited URI.

It's convenient to search URLs that we know we've visited, but not
necessarily only from a specific buffer.

To make the history persistent, I would store it in a format similar to
bookmarks but without any of the additional features I'm planning to add
(tags, search engine, etc.).
There would be the following keys:
- URL
- TITLE
- TIME

Defcustoms would include:

- The persistent file.
- The max number of entries to keep (0 for unlimited).  Older entries
get deleted first.

--
Pierre Neidhardt