I'm developing sites with Joomla cms. Joomla uses advanced Rich Editors (Tiny MCE or JCE editor). They both work as long as you spoof the website as Firefox, but only basic features work correct. You can't use the advanced features like uploading images. Also viewing html source of the text you're editing doesn't work. Indent and lists are not working too. When trying to change the font style or font size, the selected text is deselected when clicking on one of the font menu's.