Whenever I bring my cursor to the top of the screen in fullscreen mode, there's a thick blank space that pops up and I can't figure out how to disable it. Occasionally, it'll get stuck with it on display until I bring my cursor back up to trigger it on and off. I've looked into all my settings, disabled all my extensions, and checked full-s in about:config, but am not sure if there's anywhere to enable/disable this feature. Apologies if there's just some dedicated purpose to it I'm missing, but it's a little disruptive and visually jarring whenever I need to access something from my menu bar. Thanks for the help!