[TYPO3] Firefox 1.5.0.7 breaks backend

[Tony Lush]

I just upgraded Firefox on Win XP to version 1.5.0.7. In TYPO3 4.0.1 when 
selecting code view in rtehtmlarea 1.3.7 the browser crashes.

If you're using Firefox, I'd suggest not upgrading at this time.

Regards -- Tony