Mozilla plans to release Firefox 68.0.2 and Firefox ESR 68.0.2 on August 14, 2019 to the stable release channel. Firefox users who run the Stable version of the browser will be updated to the new version if they have not disabled automatic updates in the web browser. For more info go here https://www.ghacks.net/2019/08/14/firefox-68-0-2-release-information/
FF 68.0.2 is available from the internal updater now.