install firefox ext dict for Your country or get dict's
in dir like "/home/YOURHOME/.mozilla/firefox/w8yjrjmg.default/extensions/bg-BG@dictionaries.addons.mozilla.org/dictionaries/"
become root and
copy *.aff .dic to -> /usr/share/myspell/dicts/
if see "error - iconv_open: UTF-8 -> microsoft-cp1251" after start hunspell!!!
change bg_BG.aff first line to something appropriate for iconv.
in my case:
SET windows-1251 - work fine
SET microsoft-cp1251 - don't work