Hello, I am writing to inquire about the difference in the fullscreen video transition animation style between Firefox on Windows and macOS. '''Observed Difference:''' * Windows: Uses a smooth fade-in/fade-out animation when entering and exiting fullscreen, which provides a polished user experience. * macOS: The transition is present, but it lacks the distinct Windows-style fade effect and feels less smooth or different in style compared to the Windows version. '''Settings Checked:''' * I have confirmed that the about:config preferences full-screen-api.transition.duration.enter and full-screen-api.transition.duration.leave are both set to 200 200. These settings did not enable the identical Windows fade animation on macOS. '''Core Question:''' * Is there any current method (e.g., through advanced settings, flags, or extensions) for a user to apply the exact same smooth fade-in/fade-out fullscreen transition animation seen on Windows to Firefox for macOS? * If there is no current way, is this difference due to limitations with the macOS graphical environment, or is there a plan to unify the animation style in future updates? ''Moderator note: This question has been edited to fix the formatting.''