Written by Alessio Piccoli and Cédric Leporcq. xfce4-windowck-plugin is a set of two plugins which allows you to put the maximized window title and windows buttons on the panel.

This code is derived from original 'Window Applets' from Andrej Belcijan.

• Show the title and buttons of the maximized window on the panel.
• Allow window actions on buttons and title clicks (activate, (un)maximize, close).
• Allow window action menu on left button click.
• Title formatting options.
• xfwm4/unity theming support for buttons.

Add the desired window headers plugins to the panel.

You can specify the behaviour and appearance in the proprieties dialog (controlled windows, show/hide buttons, theme, title formatting options…).

https://github.com/cedl38/xfce4-windowck-plugin/releases

• Xfce4-panel 4.10

https://github.com/cedl38/xfce4-windowck-plugin

Please file bug reports or feature requests to github bug tracker.

How do I hide the window decorations on maximized windows on xfce ?

Xfce 4.12 now support Titileless feature!! Enable it in window manager tweaks → accessibility.

Alternatively, you can try to use an external program like maximus (performance should be lower).