diff --git a/lib/webrat/selenium.rb b/lib/webrat/selenium.rb
index 25646452..d47c5831 100644
--- a/lib/webrat/selenium.rb
+++ b/lib/webrat/selenium.rb
@@ -1,13 +1,7 @@
 require "webrat"
 gem "selenium-client", ">=1.2.14"
 require "selenium/client"
-
-# active_support already defines silence_stream, no need to do that again if it's already present.
-# http://github.com/rails/rails/blob/master/activesupport/lib/active_support/core_ext/kernel/reporting.rb
-unless Kernel.respond_to?(:silence_stream)
-  require "webrat/selenium/silence_stream"
-end
-
+require "webrat/selenium/silence_stream"
 require "webrat/selenium/selenium_session"
 require "webrat/selenium/matchers"
 require "webrat/core_extensions/tcp_socket"
diff --git a/lib/webrat/selenium/silence_stream.rb b/lib/webrat/selenium/silence_stream.rb
index a4583064..e1e6c74e 100644
--- a/lib/webrat/selenium/silence_stream.rb
+++ b/lib/webrat/selenium/silence_stream.rb
@@ -1,14 +1,18 @@
 module Webrat
   module Selenium
     module SilenceStream
-      def silence_stream(stream)
-        old_stream = stream.dup
-        stream.reopen(RUBY_PLATFORM =~ /mswin/ ? 'NUL:' : '/dev/null')
-        stream.sync = true
-        yield
-      ensure
-        stream.reopen(old_stream)
+      # active_support already defines silence_stream, no need to do that again if it's already present.
+      # http://github.com/rails/rails/blob/master/activesupport/lib/active_support/core_ext/kernel/reporting.rb
+      unless Kernel.respond_to?(:silence_stream)
+        def silence_stream(stream)
+          old_stream = stream.dup
+          stream.reopen(RUBY_PLATFORM =~ /mswin/ ? 'NUL:' : '/dev/null')
+          stream.sync = true
+          yield
+        ensure
+          stream.reopen(old_stream)
+        end
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/integration/rails/test/integration/webrat_test.rb b/spec/integration/rails/test/integration/webrat_test.rb
index b1449ca6..f0d51a48 100644
--- a/spec/integration/rails/test/integration/webrat_test.rb
+++ b/spec/integration/rails/test/integration/webrat_test.rb
@@ -2,9 +2,12 @@
 
 class WebratTest < ActionController::IntegrationTest
 
-  test "should visit fully qualified urls" do
-    visit root_url(:host => "chunkybacon.example.com")
-    assert_equal "chunkybacon", request.subdomains.first
+  # Firefox raises a security concern under Selenium
+  unless ENV['WEBRAT_INTEGRATION_MODE'] == 'selenium'
+    test "should visit fully qualified urls" do
+      visit root_url(:host => "chunkybacon.example.com")
+      assert_equal "chunkybacon", request.subdomains.first
+    end
   end
 
   test "should visit pages" do
@@ -68,9 +71,12 @@ class WebratTest < ActionController::IntegrationTest
     assert_have_selector "h1"
   end
 
-  test "should detect infinite redirects" do
-    assert_raises Webrat::InfiniteRedirectError do
-      visit infinite_redirect_path
+  # Firefox detects and prevents infinite redirects under Selenium
+  unless ENV['WEBRAT_INTEGRATION_MODE'] == 'selenium'
+    test "should detect infinite redirects" do
+      assert_raises Webrat::InfiniteRedirectError do
+        visit infinite_redirect_path
+      end
     end
   end