Thx, I know that FF has spell checker plugins (IE and Safari too) .
But I have "standard" customer users who are not really concerned about installing plug-in. They want "all in the box" ... Like me in fact
You`ll need a dictionary and code on the server side.
On apache you can use aspell with php, and the dictonaries.
Tinymce has a spell checker with php backend that works with aspell.
Just look for ajax spell check and you`ll get other examples.
As far as I know, google suggest doesn`t work any more.
Hope that helps.
Spell Check dialog with server-based CGI
IT Software Developer