I am looking for a way to hide the title bar for Firefox while in Fullscreen mode on macOS. Currently it is quite bothersome when I go to click a tab and the title bar pops in and moves everything down. I often then move my cursor down and try to click on the tab, but by then the title bar hides and causes me to refresh the page or click the address bar. This issue occurs when I already have 'Title Bar' disabled in my customization settings, which is odd because I expect this setting to hide the title bar entirely. Chrome handles this nicely, where the Close, Minimize, and Expand/Collpase buttons are kept to the left of the tab bar, even in fullscreen mode. It seems Firefox also attempts this, but for some reason it only does this when it is ''not'' in fullscreen mode. It would be nice if firefox could maintain these buttons to the left of the tab bar, and prevent the title bar from showing entirely, when in fullscreen.