A New Firefox 80.0 August 25 will be released later today for more info go here https://www.ghacks.net/2020/08/25/here-is-what-is-new-and-changed-in-firefox-80-0/ for release notes go here https://www.mozilla.org/en-US/firefox/80.0/releasenotes/ not yet updated.
Still having to delete the telemetry agent task with each update 
[Software Update] Mozilla Firefox 80.0 Now Available for Download
https://www.askvg.com/download-mozilla-firefox-latest-version/
Firefox 80 is live and available from the internal updater.