TEA (tclconfig) Source Code

Help: web-browser
Bounty program for improvements to Tcl and certain Tcl packages.
Tcl 2018 Conference, Houston/TX, US, Oct 15-19
Send your abstracts to tclconference@googlegroups.com
or submit via the online form by Aug 20.

The "web-browser" setting:

A shell command used to launch your preferred
web browser when given a URL as an argument.
Defaults to "start" on windows, "open" on Mac,
and "firefox" on Unix.