When adding images the tinymce image plugin at first opens fine. When clicking "browse" to place or upload an image the window appears to load and then disappears. The upload image tab does not show any upload options.
Screenshot attached. This is critical as it could mean no Firefox user can add images.
Running the error console shows very 2 JS warnings and many css warnings (i cant see an easy way to copy this output to paste here)
Tested on www.booki.cc and Booktype demo. If you fix please upgrade both installs