3 ms·> You can still re-enable X through about:config Meaning X will be removed within ~three versions.by formerly_proven 5y ago> You can still re-enable X through about:config Meaning X will be removed within ~three versions.sseneca 5y agoWeird, I've been using `toolkit.legacyUserProfileCustomizations.stylesheets` for a lot more than three versions.ntp85 5y agoWeird, there's 'legacy' right there in the name. I wouldn't be surprised if that feature gets removed at some point.