Welcome to the past! 👻
Unfortunately, FCKeditor is no longer maintained. RIP ❤️
Or, you can discover CKEditor 4, which is an enterprise-grade WYSIWYG editor with countless features and wide browser compatibility including the legacy ones.
The editor is now even more "open" than before. It is now being released under the terms of the GPL, the LGPL and the MPL licenses. This new license model solves all licensing compatibility issues when integrating FCKeditor with other open source software.
We are releasing FCKeditor 2.3.3 together with version 2.4 because it has almost the same code base as version 2.3.2, but distributed under the new licenses.