On Sat, Mar 13, 2010 at 8:45 PM, adrian kok <adriankok2000 at yahoo.com.hk> wrote: > I have question about https > > I am using mozila to access gmail as https://mail.google.com/mail > > Why mozilla prompts me the alert box? I use Mozilla Firefox v.3.0.16 (32 bit) on CentOS 5.4 I am *not* getting warnings like that, with Gmail or with the URL you posted above. Which version of Mozilla (Firefox?) are you using? > > "You have requested an encrypted page that contains some unencrypted information. Information that you see or enter on this page could easily be read by a third party." > > How mozilla knows I have data not encrypted? I have seen warnings like that, but not with Gmail. That means that some of the information on the web page you are accessing is not encrypted. > > ls https secured? Yes, it is encrypted, but sometimes not all of the information on a web page is encrypted.