Browser Sending Private Data and Passwords

Hello,
Please help me.
Every time I open my Internet Explorer browser, the anti virus send me the message shown here. What does it mean?
I am thinking that the browser is sending my private data away to other people or to someone. The words' Private data and password access. allowed', what do they mean in a normal language?
Is it just the browser accessing the data or is it accessing and sending it?

