You can still use the old version of LibreJS with the old firefox. This extension would take a lot of work to support XUL and WebExtensions at the same time. We don't have the developer resources to do that and work on the WebExtensions version will be used by many more users for much longer in the future https://en.wikipedia.org/wiki/Template:Firefox_usage_share.
If you know of a XUL based firefox fork that is becoming popular, please let us know about it. -- Ian Kelling | Senior Systems Administrator, Free Software Foundation GPG Key: B125 F60B 7B28 7FF6 A2B7 DF8F 170A F0E2 9542 95DF https://fsf.org | https://gnu.org
