Some time we are facing very strange problem with the browser like when we are browsing the .html pages in Safari its asking for downloading pages on local machine.To resolve such errors you need to add following code in .htaccess file.
AddHandler application/x-httpd-php5 .htm .html .php5 .php4 .php .php3 .php2 .phtml
AddType application/x-httpd-php5 .htm .html .php5 .php4 .php .php3 .php2 .phtml
It will resolve you issue with the Safari browser for .html pages
