Chrome scrolls the menu item into view, Firefox doesn't. See http://stackoverflow.com/a/3403683/451712

Created attachment 16490
console errors in chrome

Attached:

I'm not seeing Chrome scrolling here, but I get consistent failures at

Failing Scenarios:
cucumber features/lock_unlock_topics.feature:19 # Scenario: Locking a topic
cucumber features/lock_unlock_topics.feature:32 # Scenario: Opening a topic

and console errors, see screen shot

You're detecting later bugs :)

• The console error & pink errorbox is your bug 70906.
• H106: Locked topics should not appear collapsed has a fix pending in gerrit 160843.

Regardless, if you shrink the window about 30% smaller while the browser test is running, you can see in the "I click the Lock topic button" step where Chrome scrolls that element into view, but Firefox doesn't. I built a simpler test test which assumes the first topic on Talk:Flow_QA is an unmoderated topic:

Feature: Test lock menu item

Background:
    Given I am logged in

Scenario: Lock menu item
  Given I am on Flow page
  When I click the Topic Actions link
      And I click the Lock topic button
      And I type "This is a bikeshed" as the reason
  Then OOPS

Run this, again, reduce the height of the window while it's logging in, and Firefox will die while Chrome scrolls the window so 'Lock topic' is visible.