While browsing website .html pages in Safari browser, its asking for downloading web pages on local machine and not able to see any browser level settings issue.
To resolve problem , simply 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
Hope it will help others to resolve issue while facing same issue with Safari browser.
