Have just updated via the package manager to TinyMCE 4.3.3 on a Revo 2.2.2-pl (advanced) site and the (improved) modal windows do not work in FF 15. They do work in Chrome. I'm on a Win 7 machine.
The screen shots show that the HTML source editor is empty, the drop-downs in the link editor don't work, the special character window never displays the characters, etc...
For what it's worth, I did uninstall the TinyMCE package and re-install, clearing the site cache and browser cache, etc before and after. No change.
Is this a known bug? Could not find any reference to it in the forums, but I know FF and TinyMCE have their little spats from time to time...
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