firefox-launch

Light cross-platform launcher for Firefox.
Usage

process = spawn(url, [options])
Spawns a new Firefox instance in a separate process using
child_process.spawn.
Options include:
pref: preference file
contents to use. Set to false to not create a file.
args: additional command-line arguments to pass to Firefox. See
here
for more information.
firefoxBinary: path to a custom Firefox binary.
dir: user configuration directory to use. By default, one will be
created and then removed when the process is killed.
env: environment variables to use. Defaults to process.env.
nuke: remove opts.dir when the process exits.
Unless overridden with opts.config, the following preferences will be used:
user_pref("browser.shell.checkDefaultBrowser", false);
user_pref("browser.bookmarks.restore_default_bookmarks", false);
user_pref("dom.allow_scripts_to_close_windows", true);
user_pref("dom.disable_open_during_load", false);
user_pref("dom.max_script_run_time", 0);
License
MIT. See LICENSE.md for details.