But as has been mentioned previously not with the current release of avast 8.0.1497.
Firefox is not shown,internet explorer has had two new versions and avast has not updated,rest programs take longer than a week to update … avast software updater is not useful…because having this feature if it does not work to its purposes? 
Same exact issue in version 8.0.1496! Firefox is missing there in Software Updater as well.