diff --git a/rb/spec/integration/selenium/webdriver/action_builder_spec.rb b/rb/spec/integration/selenium/webdriver/action_builder_spec.rb
index b1edeb6a3a193..a997b52fad285 100644
--- a/rb/spec/integration/selenium/webdriver/action_builder_spec.rb
+++ b/rb/spec/integration/selenium/webdriver/action_builder_spec.rb
@@ -317,7 +317,7 @@ module WebDriver
       end
 
       describe '#scroll_by' do
-        it 'scrolls by given amount', except: {browser: :firefox, reason: 'returns false on firefox'} do
+        it 'scrolls by given amount' do
           driver.navigate.to url_for('scrolling_tests/frame_with_nested_scrolling_frame_out_of_view.html')
           footer = driver.find_element(tag_name: 'footer')
           delta_y = footer.rect.y.round