In Full Screen mode some items are permanently hidden (even when we leave this mode)

[ArkadiuszMichalski]

When we use @import "./css/tabs/tabs_below_navigation_toolbar.css"; and we go to Full Screen mode then some items (like some buttons or search bar go to the overflow button). In addition, when we leave this mode, the default state is not restored (we have to restart the browser to get proper state).

Screen without Full Screen mode:

Screen with Full Screen mode:

Screen after leaving Full Screen mode (some buttons or search bar still sitting in the overflow button):

Is there any way to not modify Nav Bar when we use @import "./css/tabs/tabs_below_navigation_toolbar.css"; and enter/exit to/from Full Screen mode? I would except that this Nav Bar will look identical in both modes (don't hide anything).

I use:
CustomCSSforFx 4.5.5
Firefox 129.0.2 (64-bit)
Theme: https://addons.mozilla.org/en-US/firefox/addon/pinstripe-blue/
browser.search.widget.inNavBar << set to true in about:config
@import "./css/toolbars/menubar_in_fullscreen_mode.css"; << use also this
Windows 11

[Aris-t2]

Which screen resolution are you using? I can't reproduce this on my system.

Does this happen, if you are using default theme?

[Aris-t2]

Any news about the issue?