Restart Firefox -> "Window" menu still missing
 Restart Windows and Firefox -> Still missing
 Check for updates, apply them, reboot -> "Window" menu still missing
 Google searches -> Found nothing applicable
 Question search on Mozilla website -> Found nothing applicable
 Checked about:config -> Didn't find any preferences that explicitly seem related
 Tried right-clicking on the menu bar and selecting "customize" -> No option to restore the menu

Hi, Many thanks for any help you can offer on this. I'm not sure if it may be part of Mozilla's UI decluttering efforts or perhaps just a bug but for some reason the "Window" menu is missing from the Firefox menu bar on both of my Windows PCs. It's still present in Firefox on my Mac though. FYI: Mac -- OS: High Sierra, 10.13.6; Firefox: 60.5.2esr 64-bit Windows -- OS: Win10; Firefox 65.0.2 64-bit Is this a bug or was there a consious decision by developers to remove it? In either case, any help you can offer on how to restore this menu to the menu bar will be much appreciated! FYI: Self help attempted so far: Restart Firefox -> "Window" menu still missing Restart Windows and Firefox -> Still missing Check for updates, apply them, reboot -> "Window" menu still missing Google searches -> Found nothing applicable Question search on Mozilla website -> Found nothing applicable Checked about:config -> Didn't find any preferences that explicitly seem related Tried right-clicking on the menu bar and selecting "customize" -> No option to restore the menu Thanks once again, D