I use Firefox ESR because I like old Firefox and hate the new Quantum thingy. The old Firefox had these complete themes that, not just added a image background and fancy colors, but changed the way the tabs and other menu looked. I get it, that maintaining them was too muck work for developers and their time is better spent on developing other important things. But I am a ESR user. Everything worked fine for me. I went to the old Addons website and install the complete themes. Now all the themes are gone. The page where the complete themes used to says "No results found." Here: https://addons.mozilla.org/en-US/firefox/complete-themes/ Why did those files get removed? I am not asking for developers to work on them, I just want them to be there so that I can use them on ESR 52.0 version. If anyone from the forum knows someone who can put those files back, that'd be great. Thank you.