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Unfortunately, FCKeditor is no longer maintained.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 stabilization of FCKeditor 2.6.3 Beta has been completed successfully with a few minor issues being fixed. We are happy to bring another nice release to public, with some important new features.