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Unfortunately, FCKeditor is no longer maintained.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.
I wanted to release this version before I'm going on holidays. I want also to thank everybody that supported me until know in this project, specially for the community that believes in it. See you on September.