Disable application window titles?

[lombat]

I just installed Lubuntu 23.10 and use Openbox 3.6.1. I want to remove the title bar at the top of application windows. I especially want to do this for Firefox. The reason is I want more screen real estate. I want application windows to appear like they do in KDE or MS-Windows.

I looked into Openbox decorations after getting a tip on the LXQt Matrix server. However, editing my rc.xml file manually did not result in any changes.

Any guidance?

[wxl]

1. cp /etc/xdg/xdg-Lubuntu/openbox/rc.xml ~/.config/openbox/rc.xml
2. Edit ~/.config/openbox/rc.xml
3. Search for the <titleLayout> tag which should have a value of NLIMC
4. Remove the L
5. Run openbox --reconfigure

More on OpenBox configuring can be found here.

Or do it graphically…

1. Go to Preferences > Openbox settings
2. Click on “Appearance”
3. Remove the “L” from “Button order”

[humpty]

I think the OP wants to get rid of the whole titlebar entirely.
(the effect is the same as left-corner-click > Un/Decorate)

In your ~/.config/openbox/rc.xml, e.g

    <application class="firefox-esr">
      <decor>no</decor>
    </application>

(you have to get the right name of the application)

openbox --reconfigure