https://www.mozilla.org/en-US/firefox/72.0/releasenotes/
Security Vulnerabilities fixed in Firefox 72 - Mozilla Foundation Security Advisory 2020-01
Android 版も Firefox 68.4.0
https://www.mozilla.org/en-US/firefox/android/68.4.0/releasenotes/
Security Vulnerabilities fixed in Firefox ESR 68.4 - Mozilla Foundation Security Advisory 2020-02