| 151571 | Mozilla Firefox < 90.0 | Nessus | Windows | 7/13/2021 | 11/18/2025 | critical |
| 151677 | Debian DLA-2709-1 : firefox-esr - LTS security update | Nessus | Debian Local Security Checks | 7/15/2021 | 12/8/2023 | high |
| 151803 | SUSE SLES11: MozillaFirefox / MozillaFirefox-translations-common / etc (SUSE-SU-2021:14766-1) | Nessus | SuSE Local Security Checks | 7/17/2021 | 6/25/2026 | high |
| 151807 | Debian DSA-4940-1 : thunderbird - security update | Nessus | Debian Local Security Checks | 7/18/2021 | 12/7/2023 | high |
| 151812 | Debian DLA-2711-1 : thunderbird - LTS security update | Nessus | Debian Local Security Checks | 7/19/2021 | 1/24/2025 | high |
| 152076 | RHEL 8 : thunderbird (RHSA-2021:2883) | Nessus | Red Hat Local Security Checks | 7/26/2021 | 11/7/2024 | high |
| 152168 | CentOS 8 : thunderbird (CESA-2021:2883) | Nessus | CentOS Local Security Checks | 8/1/2021 | 12/6/2023 | high |
| 157838 | Rocky Linux 8 : thunderbird (RLSA-2021:2883) | Nessus | Rocky Linux Local Security Checks | 2/9/2022 | 11/6/2023 | high |
| 163986 | GLSA-202208-14 : Mozilla Thunderbird: Multiple Vulnerabilities | Nessus | Gentoo Local Security Checks | 8/10/2022 | 10/16/2023 | critical |
| 160798 | NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2022-0005) | Nessus | NewStart CGSL Local Security Checks | 5/9/2022 | 10/30/2023 | high |
| 208618 | CentOS 7 : thunderbird (RHSA-2021:2881) | Nessus | CentOS Local Security Checks | 10/9/2024 | 10/9/2024 | high |
| 293914 | MiracleLinux 8 : thunderbird-78.12.0-3.el8.ML.1 (AXSA:2021-2308:14) | Nessus | Miracle Linux Local Security Checks | 1/20/2026 | 1/20/2026 | high |
| 294228 | MiracleLinux 4 : firefox-78.12.0-1.0.1.AXS4 (AXSA:2021-2238:17) | Nessus | Miracle Linux Local Security Checks | 1/20/2026 | 1/20/2026 | high |
| 294662 | MiracleLinux 8 : firefox-78.12.0-1.el8.ML.1 (AXSA:2021-2303:20) | Nessus | Miracle Linux Local Security Checks | 1/20/2026 | 1/20/2026 | high |
| 359037 | Rocky Linux 8 [CIQ] Security Update: firefox / firefox-debuginfo / firefox-debugsource Multiple Vulnerabilities (crlsa-2021_2743) | Nessus | Rocky Linux Local Security Checks | 10/1/2026 | 10/1/2026 | high |