please have a look for your windows time
Related topics: https://forum.avast.com/index.php?topic=200406.msg1407644#msg1407644 https://forum.avast.com/index.php?topic=203173.0 https://forum.avast.com/index.php?topic=196852.0 https://forum.avast.com/index.php?topic=204588.msg1403895#msg1403895 and bug in firefox: https://bugzilla.mozilla.org/show_bug.cgi?id=1352720
