When Firefox was updated on my laptop a few days ago to version 19, suddenly my Cucumber tests using Selenium and Firefox stopped working, with error: unable to obtain stable firefox connection in 60 seconds (127.0.0.1:7055) (Selenium::WebDriver::Error::WebDriverError) When I investigated, I found that Capybara / Selenium didn’t support this version yet. The first thing I did was to downgrade Fire