See https://www.mozilla.org/en-US/firefox/78.12.0/releasenotes/ Fixes https://www.mozilla.org/en-US/security/advisories/mfsa2021-29/
See https://www.mozilla.org/en-US/firefox/78.12.0/releasenotes/ Fixes https://www.mozilla.org/en-US/security/advisories/mfsa2021-29/