m1k3 wrote:

Do you mean this? https://support.mozilla.org/en-US/kb/cu … d-toolbars

There's a title bar checkbox at the bottom of the customize toolbar screen which toggles the window manager's title bar.

Yes. If gtk3-nocsd is installed, that checkbox has no effect.

If you dont mind gtk3-nocsd installed you can input the below in $HOME/.xsessionrc or /etc/environment and be done with xfwm or whatever window manager titlebar and accept the gtk3 override. Just an option, i use dwm but have experimented with xfce and other window managers in the past.

GTK_CSD=1

Yes. If gtk3-nocsd is installed, that checkbox has no effect.

Ah, gotcha. I didn't run into that issue with the default install of Daedalus. Then again, I customize userChrome.css to hide the tab bar in favor of using Sidebery.

Do you mean this? https://support.mozilla.org/en-US/kb/cu … d-toolbars

There's a title bar checkbox at the bottom of the customize toolbar screen which toggles the window manager's title bar.

Yes. If gtk3-nocsd is installed, that checkbox has no effect.

There's a title bar checkbox at the bottom of the customize toolbar screen which toggles the window manager's title bar.

The Firefox titlebar can not hide.

You probably need to uninstall gtk3-nocsd. That solved it for me.

It should disappear if you press the F11 key - press again to get it back.

The F11 key toggles FullScreen mode. It doesn't simply turn the titlebar on and off. There is a checkbox in the 'customize' screen that purports to toggle this If it doesn't work (and I experienced this same problem), you probably need to uninstall gtk3-nocsd. That solved it for me.

It should disappear if you press the F11 key - press again to get it back.

I've accidentally done that a number of times. First time freaked me out!

If not sure post output from cat /etc/os-release and copy whatever Help -> About Firefox shows (or post a screen shot).

SOLVED by:
sudo apt remove gtk3-nocsd