I'm an Opera user and recently switched from XEmacs to FSF Emacs. The
XEmacs version of browse-url.el (in the mail-lib package) has support for
Opera; I was wondering if it might be possible to fold that into the FSF
version?

I just copied the Opera code from the XEmacs version and it seemed to work
nicely. The XEmacs file has the following copyright notice:

;;; browse-url.el --- pass a URL to a WWW browser

;; Copyright (C) 1995, 96, 97, 98, 99, 2000, 2001, 2002
;;   Free Software Foundation, Inc.

;; Author: Denis Howe <dbh@doc.ic.ac.uk>
;; Maintainer: XEmacs Development Team
;; Created: 03 Apr 1995
;; Keywords: hypertext, hypermedia, mouse

;; This file is part of XEmacs.

;; XEmacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; XEmacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with XEmacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.


which suggests that the code is already assigned to the FSF, so it could
be included in GNU Emacs.

I attach the XEmacs version of browse-url.el, and my modified version of
FSF Emacs 21.3.1's browse-url.el. Let me know if I can help in any other
way.

-- 
http://www.mupsych.org/~rrt/ | Caution Children At Play Drive Slowly
(Anon)