bug#17425: 24.4.50; tramp-cleanup-this-connection on push-button

[Glenn Morris]

Does this help?

*** lisp/net/browse-url.el      2014-02-10 01:34:22 +0000
--- lisp/net/browse-url.el      2014-05-07 23:02:02 +0000
***************
*** 812,819 ****
                           browse-url-mailto-function)
                      browse-url-browser-function))
        ;; Ensure that `default-directory' exists and is readable (b#6077).
!       (default-directory (if (and (file-directory-p default-directory)
!                                   (file-readable-p default-directory))
                               default-directory
                             (expand-file-name "~/"))))
      ;; When connected to various displays, be careful to use the display of
--- 812,820 ----
                           browse-url-mailto-function)
                      browse-url-browser-function))
        ;; Ensure that `default-directory' exists and is readable (b#6077).
!       (default-directory
!           (if (and (not (file-remote-p default-directory))
!                    (file-accessible-directory-p default-directory))
                default-directory
              (expand-file-name "~/"))))
      ;; When connected to various displays, be careful to use the display of