newbie question regarding gmail and https sites

I recently installed Norton Online Family and have been testing it to make sure that it meets my family's needs.  When I type gmail.com I am redirected to https://www.google.com/accounts/ServiceLogin?service=mail&passive=true&rm=false&continue=http%3A%2F%2Fmail.google.com%2Fmail%2F%3Fui%3Dhtml%26zy%3Dl&bsv=1eic6yu9oa4y3&scc=1&ltmpl=default&ltmplcache=2

However, When I try to specifically allow the above secure url, I am told it is an invalid website.  Also, understandably, allowing gmail.com as valid website is ineffective becuase of the redirect. 

 

So, I read in a previously posted message that you can allow secure websites (https site) but I cannot find where to turn this on or off. 

 

Your help in finding a solution would be appreciated.

 

I am using Mac OS X, Firefox browser, and the latest version of your product. 

 

Thank you for your help