Created attachment 123833 [details] The attachment shows the empty space on the top of Firefox SUMMARY When I use the Global Menu widget with Firefox without title bar, it shows an empty space on the top of the browser where it should be the global menu. I've tried both in Firefox Developer and Chrome and this doesn't happen, only in the "regular" Firefox. STEPS TO REPRODUCE 1. Activate Global Menu Widget 2. Disable Title Bar on Firefox OBSERVED RESULT It shows an empty space on the top of the browser. EXPECTED RESULT This space shouldn't appear. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kubuntu 19.10 KDE Plasma Version: 5.16.5 KDE Frameworks Version: 5.62.0 Qt Version: 5.12.4
This is a bug in Firefox itself, for not hiding the extra bar in CSD view when you're using a global menu. Please report it to the Ubuntu folks, who maintain the Firefox packaging that makes this feature work.