User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:188.8.131.52) Gecko/2008120122 Firefox/3.0.5 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:184.108.40.206) Gecko/2008120122 Firefox/3.0.5 When you type in a url with https:// that has a bad Cert Domain the Browser shows an Error Message and Stops wich is a correct behavior. Now if the page that should be shown has a redirect to redirect you to a domain that has a correct Cert Domain the new Redirectet Page should be shown. But Firefox does not redirect and stays on the page with the SSL-Cert Domain Error Warning instead of waiting if this page maybe redirects to a valid ssl domain. Example: https://www.domain.com has a valid SSL-Cert Domain. https://www.domain.net has not a valid SSL-Cert Domain. Typing https://www.domain.net gives out a ssl_error_bad_cert_domain https://www.domain.net now redirects automatically to https://www.domain.com Which would be valid, but firefox stays on the ssl_error_bad_cert_domain page and goes not directly to https://www.domain.com Reproducible: Always Steps to Reproduce: 1. You Need a domain with valid ssl 2. You Need a domain with invalid ssl, Error: Bad Cert Cert Domain 3. Setup a Redirect with .htaccess on the Domain with invalid SSL that redirects to the domain with valid SSL. 4. Type in the url with invalid ssl. Actual Results: After Typing the URL with invalid ssl, firefox shows the ssl_error_bad_cert_domain Error asking you to add an exepction. Expected Results: After Typing the URL with invalid ssl, firefox should show the URL with the Redirect, in this Case the url with valid ssl.