www_open_url/1

Availability::- use_module(library(www_browser)).(can be autoloaded)

Open URL in running version of the users’ browser or start a new browser. This predicate tries the following steps:

If a prolog flag (see set_prolog_flag/2) browser is set and this is the name of a known executable, use this. The flag may be set to Command-Mode, where mode is one of fg or bg, requesting Command to run in foreground or background mode. Default is bg.
Hand the URL to the desktop using desktop_open/2 from library(desktop) if this library is available. On Windows we use win_shell/2 if it is not.
If a environment variable BROWSER is set and this is the name of a known executable, use this.
Try to find a known browser.