according to this: https://developer.mozilla.org/en-US/Firefox/Headless_mode firefox 57+, has the ability to run in headless mode.
i tried to use it with this:
omg3r = Watir::Browser.new :firefox, profile: 'omg3r', args: "-headless"
and i couldn't find an example to how to properly send arguments to firefox in watir. help please
If you are using Watir 6.9 you can try:
omg3r = Watir::Browser.new :firefox, profile: 'omg3r', headless: true
example your browser is in case statement as firefox-remote
when "firefox-remote"
options = Selenium::WebDriver::Firefox::Options.new(args: ['-headless'])
browser = Watir::Browser.new :firefox, options: options
来源：https://stackoverflow.com/questions/46875841/ruby-watir-firefox-headless