This regressed in natty because /usr/lib/firefox-4.0/dictionaries is symlinked to the wrong folder. It should be symlinked to /usr/share/hunspell (like in maverick) rather than /usr/share/myspell/dicts
This regressed in natty because /usr/lib/ firefox- 4.0/dictionarie s is symlinked to the wrong folder. It should be symlinked to /usr/share/hunspell (like in maverick) rather than /usr/share/ myspell/ dicts