FirefoxDriver always starting on “firstrun” page, breaking all test scripts

Question

Starting just last night, the FirefoxDriver has been always opening on this page: https://www.mozilla.org/en-US/firefox/42.0/firstrun/learnmore/. I have tried c

Answer 1

I was having this problem when running RSpec/Capybara tests using a Selenium Webdriver and Poltergeist with Firefox as the browser for a Rails app. Tried reconfiguring Firefox in various ways to no avail but managed to fix by simply updating the selenium-webdriver gem in my Gemfile (gem 'selenium-webdriver'):

bundle update selenium-webdriver

Credit goes to @lucetzer