german language problem in FireFox

i have german language pack installed, and i define the charset to utf8 in german language file,
the special letters "ö", "ß", "€" display correctly in IE, but when i open the site in Firefox, those letters become "�". any help? :(

This might provide some insight

http://www.picosearch.com/faqs/faq_charsets.html

yes, i tried changing those characters to html characters, it works.

but, in the custormers' contact mails, creat account mails, order confirmation mails, their names and address are not displaying correctly with those special characters. :(

then i tried adding the codes
if (version_compare(mysql_get_server_info(), '4.1.0', '>=')) {
mysql_query('SET NAMES "utf8"', $this->link);}
to /includes/classes/db/mysql/query_factory.php

then it works fine for everything of my german pages and emails.

But, the characters such as é, è, ç of my french pages dont work anymore !

then, i have to remove those codes.

how do i fix it ? i want both my french site and german site work ! :unsure:

Did you try the ISO designation instead of the UTF8

kobra:

Did you try the ISO designation instead of the UTF8

yes i did.

ISO is ok for all my other language packs except german :bigups: