Firefox (v159) has 10 items on the MacOS top menubar: Firefox, File, Edit, View, History, Bookmarks, Profiles, Tools, Window, Help.
10 items is too many - and it's more than most other simple MacOS apps. it causes some menu items to vanish beneath notch apps, which looks unsightly. would be nice to see the number of menubar items trimmed, either by default or as an option in app's settings. thanks!
(screenshot below shows Firefox with Mac menubar while Boring Notch app is running in the notch area, which makes the Mac notch slightly wider.)
