2021-01-07 Firefox Browser 84.0.2 https://www.mozilla.org/en-US/firefox/84.0.2/releasenotes/ Security Vulnerabilities fixed in Firefox 84.0.2, Firefox for Android 84.1.3, and Firefox ESR 78.6.1 - Mozilla Foundation Security Advisory 2021-01 Android 版も 84.1.3SHG01 Nexus 7 (2013)