File Thingie versions 2.5.0 and newer makes it easy to enable rich text editing of webpages using the open-source editor TinyMCE.
Turning on rich text editing is simple:
tiny_mce folder from your TinyMCE download to your File Thingie location.FOLDERBLACKLISTPATH setting in the plugin to point to the file tiny_mce.js. E.g. if you uploaded TinyMCE to a folder called tinymce you would set the setting to tinymce/tiny_mce.js. This path is relative to the location of ft2.php.LIST setting.