Firefox Infection warnings when I open it

I had a problem with Firefox today, most of the websites I try to open show me an error about Firefox that cannot establish a secure connection ( sites like Gmail ).
So i decided to reset Firefox, after the reset process completion, Kaspersky Internet Security shows me those warnings about malicious URLs.

This happen when i open Firefox, no websites visited, only Firefox start page.
I Have never disabled Kis so is this a KIS bug or what can be the problem?

I...

Firefox Infection warnings when I open it