I know your domain, I have found it by your email.
I confirm that the first issue is because of cookie domain. When you login on your site, it sets a unique cookie and on every load the browser sends the cookie data to your site, so your site knows who the visitor is. Cookies are assigned with domain name and browser doesn't send cookies assigned with other domains. For example www.domain.com
and domain.com are different. If you are logged on domain.com, you will not be logged on www.domain.com
. But if you assign your cookie with .domain.com all the subdomains like www, it, fr, etc... will share cookies and if you are logged on www.domain.com
you will be also logged on domain.com or it.domain.com.
I have just searched and I think found a solution on joomla forum: http://forum.joomla.org/viewtopic.php?p=1746135
I'm not sure why it works on IE though.
For the second issue, please post a link to your chat and may be a test login details if needed, so I can check it for you.