screenshot

Steps to reproduce:

• Click on the heading format drop-down menu. Don't close it.
• Click on the Page settings menu.

Expected result:

• The heading format drop-down is closed before the Page settings dialog shows up.

Actual result:

• The heading format drop-down remains open (and selectable) on top of the Page settings dialog (see attached screenshot).

Observed in Firefox 21.

Version: unspecified
Severity: normal

Attached: