Prevent Browser Processes Started by Emacs from Being Killed When Emacs Exits on GNU/Linux

The function browse-url in Emacs can be used to start a browser process to visit a given URL. It is used by many packages such as org-mode, mu4e, etc. However, on GNU/Linux, by default a new browser process started by browse-url will be killed if the Emacs process exits. To prevent the browser process from being killed, add the following code to your Emacs init file:

(when (and (executable-find "setsid") (executable-find "gnome-open"))
  (setq browse-url-browser-function
        (lambda (url &optional ignored)
          (start-process "" nil "setsid" "gnome-open" url))))

You will need both the setsid and gnome-open commands available. Note that replacing gnome-open with xdg-open is not guaranteed to work.

One thought on “Prevent Browser Processes Started by Emacs from Being Killed When Emacs Exits on GNU/Linux

  1. Pingback: 2016-11-21 Emacs News - sacha chua :: living an awesome life

Leave a Reply

Your email address will not be published.