A.28 library(www_browser): Open a URL in the users browser
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Availability::- use_module(library(www_browser)).(can be autoloaded)
Sourcewww_open_url(+Url)
Open URL in running version of the users' browser or start a new browser. This predicate tries the following steps:

  1. 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.
  2. On Windows, use win_shell(open, URL)
  3. Find a generic‘open' comment. Candidates are xdg-open, open or gnome-open.
  4. If a environment variable BROWSER is set and this is the name of a known executable, use this.
  5. Try to find a known browser. @tbd Figure out the right tool in step 3 as it is not uncommon that multiple are installed.