Affected : 4.11.x Since this commit http://git.xfce.org/xfce/xfce4-panel/commit/?id=d296ca76507bc5ffdbb8e77745568cf5063e069d - bug 10508 - , if you have "Focus follow the mouse" enabled, you can't minimize an application from the "window button" plugin if it is not focused. Works fine after a revert.
Here are 2 more bug reports to the same issue... but for the xfwm4 package, not the xfce4-panel. There's also a thread to the xfce-forum which provides some more infos. https://bugzilla.xfce.org/show_bug.cgi?id=10747 https://bugs.launchpad.net/ubuntu/+source/xfwm4/+bug/1292122 http://forum.xfce.org/viewtopic.php?id=8772
*** Bug 10747 has been marked as a duplicate of this bug. ***
Fixed in xfwm4, see bug 10747 *** This bug has been marked as a duplicate of bug 10747 ***