Plugin window stays focused when switching apps

I don’t think this occurred on WL 8.0.3 and earlier, but it seems that if i have a plugin window or plugin chain window open and move to another app like Safari or Mail, the plugin window remains open and focused and covers up the application I switch to.

Is there a setting to stop this or is this a new bug/behavior in WL 8.5

OSX 10.9.2

You’re right. This would better be reverted as before (there is no user setting for this).