Firefox 69, the newest version of this classic web browser, will not support Flash Player. The old plug-in is generally considered to be an old and unhandy relic of the old times and is being pushed out more and more in favour of HTML 5 or other, newer ones. Firefox 69, which is supposed to come out on September 2019, will block that plug-in by default. Consumer version of the browser will completely stop working with FP at 2020.