Upgrade selenium

Gemfile

@@ -66,7 +66,7 @@ end
 
 group :test do
   gem 'capybara'
-  gem 'selenium-webdriver', '< 3.0.0'
+  gem 'selenium-webdriver'
   gem 'database_cleaner'
   gem "acts_as_fu"
   gem 'zeus' unless ENV["CI"]

Gemfile.lock

@@ -339,10 +339,9 @@ GEM
       ffi-compiler (>= 1.0, < 2.0)
     select2-rails (4.0.3)
       thor (~> 0.14)
-    selenium-webdriver (2.53.4)
+    selenium-webdriver (3.4.4)
       childprocess (~> 0.5)
       rubyzip (~> 1.0)
-      websocket (~> 1.0)
     shellany (0.0.1)
     simple_form (3.5.0)
       actionpack (> 4, < 5.2)
@@ -383,7 +382,6 @@ GEM
     unicorn (5.3.0)
       kgio (~> 2.6)
       raindrops (~> 0.7)
-    websocket (1.2.4)
     websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.2)
@@ -455,7 +453,7 @@ DEPENDENCIES
   sass
   sass-rails
   select2-rails
-  selenium-webdriver (< 3.0.0)
+  selenium-webdriver
   simple_form
   sprockets-rails (>= 3.0.0)
   therubyracer

spec/features/support/browser.rb

@@ -10,6 +10,10 @@
   Capybara.register_driver :selenium do |app|
     Capybara::Selenium::Driver.new(app, browser: :chrome)
   end
+else
+  Capybara.register_driver :selenium do |app|
+    Capybara::Selenium::Driver.new(app, browser: :firefox, desired_capabilities: Selenium::WebDriver::Remote::Capabilities.firefox(marionette: false))
+  end
 end
 
 #