Mozilla sent Firefox Version 88.0 to the release channel today. The update includes ten security updates of which five (5) are rated high, six (6) moderate and two (2) rated low.
Firefox ESR was updated to Version 78.10.
Update: To get the update now, select "Help" from the Firefox menu, then pick "About Firefox." Mac users need to select "About Firefox" from the Firefox menu. If you do not use the English language version, Fully Localized Versions (https://www.mozilla.org/en-US/firefox/all.html) are available for download.
Security Updates (https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/)
Release Notes (https://www.mozilla.org/en-US/firefox/88.0/releasenotes/)
Rapid Release Calendar (https://wiki.mozilla.org/Release_Management/Calendar)