I am trying to launch FF 52.x with geckodriver0.15 on OSX.
However, browser doesn't launch.
Using Ruby
require 'selenium/webdriver'
Selenium::WebDriver::Firefox::Binary.path = "/Users/#{ENV['USER']}/Applications/Firefox.app/Contents/MacOS/firefox"
Capybara::Selenium::Driver.new(app, :browser => :firefox)
session = Capybara::Session.new(:selenium)
session.visit('/')
Selenium::WebDriver::Error::WebDriverError: unable to connect to Mozilla geckodriver 127.0.0.1:4444