I already mentioned this in bug 279703, comment 22: " - After clicking on a menu-item in a menu, the menu-button is going back into its hovered state. " I can see this now still after the patch has been checked in. You said in comment 23: " Not clear what you mean here, or maybe I just don't see it. You are rolling the mouse over the items on a menubar? " Steps to reproduce: - Click on "Edit" menu-item. - Click on "Find" menu-item. Actual result: Find-bar opens, but the "Edit" menu-item gets briefly a hovered look. Expected result: Find-bar opens, nothing else.
I don't see this either.
Maybe try with File->Save Page As...?
OK, I can see this with the Save Page As command. It's caused because there is a brief period between when the menu is closed and the asynchronous event which deselects the menu fires. This will be fixed by bug 390647.