Thanks for pointing that out. I'm worried too: - At first, the discussion on bugzilla [1] is reasonable: user stylesheets off by default for performance, and t

Thanks for pointing that out. I'm worried too: - At first, the discussion on bugzilla [1] is reasonable: user stylesheets off by default for performance, and there's even backward compat code enabling the pref during Firefox 68 if you are using them. All good... - ... but then comes this legacy in the pref name :-| :-| :-| I hope Mozilla keeps the feature alive, it's appreciated by many "power" users. [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1541233 https://bugzilla.mozilla.org/show_bug.cgi?id=1541233 EDIT good news: re-reading recent comments, in https://bugzilla.mozilla.org/show_bug.cgi?id=1541233#c61 https://bugzilla.mozilla.org/show_bug.cgi?id=1541233#c61 , Florian Quèze (mozilla dev) affirms: "the word 'legacy' was used in the preference name to avoid giving the impression that with this new preference we are adding a new customization feature. I'm not aware of any plan to drop support for these files".