# firefox-x11 security updates

Patch Radar has 166 security fixes for firefox-x11, closing 789 CVEs, 4 of which are being exploited. The newest is ELSA-2026-89757 (0:153.5.0-1.0.1.el9_8), released November 7, 2026.

- Web page: https://patchblox.com/security/product/linux/firefox-x11
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [ELSA-2026-89757](https://patchblox.com/security/data/fix/linux/elsa-2026-89757.md) | Nov 7, 2026 | ol 9 0:153.5.0-1.0.1.el9_8 | Urgent | 48 | 0 |
| [ELSA-2026-93957](https://patchblox.com/security/data/fix/linux/elsa-2026-93957.md) | Nov 7, 2026 | ol 9 0:153.6.0-1.0.1.el9_8 | Urgent | 144 | 0 |
| [ALSA-2026:89757](https://patchblox.com/security/data/fix/linux/alsa-2026-89757.md) | Nov 7, 2026 | almalinux 9 153.5.0-1.el9_8 | Urgent | 48 | 0 |
| [RHSA-2026:89757](https://patchblox.com/security/data/fix/linux/rhsa-2026-89757.md) | Oct 31, 2026 | RHEL 9 0:153.5.0-1.el9_8 | Urgent | 48 | 0 |
| [RHSA-2026:76761](https://patchblox.com/security/data/fix/linux/rhsa-2026-76761.md) | Oct 24, 2026 | RHEL 9 0:140.17.0-1.el9_8 | Urgent | 43 | 0 |
| [ELSA-2026-76761](https://patchblox.com/security/data/fix/linux/elsa-2026-76761.md) | Oct 7, 2026 | ol 9 0:140.17.0-1.0.1.el9_8 | Urgent | 43 | 0 |
| [ALSA-2026:76761](https://patchblox.com/security/data/fix/linux/alsa-2026-76761.md) | Oct 6, 2026 | almalinux 9 140.17.0-1.el9_8.alma.1 | Urgent | 43 | 0 |
| [RHSA-2026:67133](https://patchblox.com/security/data/fix/linux/rhsa-2026-67133.md) | Sep 27, 2026 | RHEL 9 0:140.15.0-1.el9_8 | Urgent | 10 | 0 |
| [RHSA-2026:69462](https://patchblox.com/security/data/fix/linux/rhsa-2026-69462.md) | Sep 22, 2026 | RHEL 9 0:140.16.0-1.el9_8 | Urgent | 28 | 0 |
| [ELSA-2026-69462](https://patchblox.com/security/data/fix/linux/elsa-2026-69462.md) | Sep 22, 2026 | ol 9 0:140.16.0-1.0.1.el9_8 | Urgent | 28 | 0 |
| [ALSA-2026:69462](https://patchblox.com/security/data/fix/linux/alsa-2026-69462.md) | Sep 21, 2026 | almalinux 9 140.16.0-1.el9_8.alma.1 | Urgent | 28 | 0 |
| [ALSA-2026:67133](https://patchblox.com/security/data/fix/linux/alsa-2026-67133.md) | Sep 14, 2026 | almalinux 9 140.15.0-1.el9_8.alma.1 | Urgent | 10 | 0 |
| [ELSA-2026-67133-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67133-0.md) | Sep 14, 2026 | ol 9 0:140.15.0-1.0.1.el9_8 | Urgent | 10 | 0 |
| [RHSA-2026:58897](https://patchblox.com/security/data/fix/linux/rhsa-2026-58897.md) | Aug 28, 2026 | RHEL 9 0:140.14.0-1.el9_8 | Urgent | 31 | 0 |
| [ALSA-2026:58897](https://patchblox.com/security/data/fix/linux/alsa-2026-58897.md) | Aug 24, 2026 | almalinux 9 140.14.0-1.el9_8.alma.1 | Urgent | 31 | 0 |
| [ELSA-2026-58897](https://patchblox.com/security/data/fix/linux/elsa-2026-58897.md) | Aug 24, 2026 | ol 9 0:140.14.0-1.0.1.el9_8 | Urgent | 31 | 0 |
| [RHSA-2026:47104](https://patchblox.com/security/data/fix/linux/rhsa-2026-47104.md) | Aug 5, 2026 | RHEL 9 0:140.13.0-1.el9_8 | Urgent | 33 | 0 |
| [ELSA-2026-47104](https://patchblox.com/security/data/fix/linux/elsa-2026-47104.md) | Jul 29, 2026 | ol 9 0:140.13.0-1.0.1.el9_8 | Urgent | 33 | 0 |
| [ALSA-2026:47104](https://patchblox.com/security/data/fix/linux/alsa-2026-47104.md) | Jul 28, 2026 | almalinux 9 140.13.0-1.el9_8.alma.1 | Urgent | 33 | 0 |
| [ELSA-2026-21378](https://patchblox.com/security/data/fix/linux/elsa-2026-21378.md) | Jun 29, 2026 | ol 9 0:140.12.0-1.0.1.el9_8 | High | 18 | 0 |
| [ELSA-2026-20574](https://patchblox.com/security/data/fix/linux/elsa-2026-20574.md) | Jun 29, 2026 | ol 9 0:140.12.0-1.0.1.el9_8 | High | 3 | 0 |
| [ELSA-2026-19370](https://patchblox.com/security/data/fix/linux/elsa-2026-19370.md) | Jun 29, 2026 | ol 9 0:140.12.0-1.0.1.el9_8 | High | 4 | 0 |
| [RHSA-2026:27734](https://patchblox.com/security/data/fix/linux/rhsa-2026-27734.md) | Jun 24, 2026 | RHEL 9 0:140.12.0-1.el9_8 | Urgent | 29 | 0 |
| [RHSA-2026:21378](https://patchblox.com/security/data/fix/linux/rhsa-2026-21378.md) | Jun 24, 2026 | RHEL 9 0:140.11.0-1.el9_8 | High | 18 | 0 |
| [ELSA-2026-27734](https://patchblox.com/security/data/fix/linux/elsa-2026-27734.md) | Jun 23, 2026 | ol 9 0:140.12.0-1.0.1.el9_8 | Urgent | 29 | 0 |
| [ALSA-2026:27734](https://patchblox.com/security/data/fix/linux/alsa-2026-27734.md) | Jun 22, 2026 | almalinux 9 140.12.0-1.el9_8.alma.1 | Urgent | 29 | 0 |
| [ELSA-2026-19201](https://patchblox.com/security/data/fix/linux/elsa-2026-19201.md) | Jun 12, 2026 | ol 9 0:140.10.0-1.0.1.el9_8 | High | 25 | 0 |
| [RHSA-2026:19370](https://patchblox.com/security/data/fix/linux/rhsa-2026-19370.md) | May 27, 2026 | RHEL 9 0:140.10.1-1.el9_8 | High | 5 | 0 |
| [RHSA-2026:20574](https://patchblox.com/security/data/fix/linux/rhsa-2026-20574.md) | May 27, 2026 | RHEL 9 0:140.10.2-1.el9_8 | High | 3 | 0 |
| [ALSA-2026:21378](https://patchblox.com/security/data/fix/linux/alsa-2026-21378.md) | May 27, 2026 | almalinux 9 140.11.0-1.el9_8.alma.1 | High | 18 | 0 |
| [ALSA-2026:20574](https://patchblox.com/security/data/fix/linux/alsa-2026-20574.md) | May 26, 2026 | almalinux 9 140.10.2-1.el9_8 | High | 3 | 0 |
| [ALSA-2026:19370](https://patchblox.com/security/data/fix/linux/alsa-2026-19370.md) | May 19, 2026 | almalinux 9 140.10.1-1.el9_8.alma.1 | High | 5 | 0 |
| [RHSA-2026:19201](https://patchblox.com/security/data/fix/linux/rhsa-2026-19201.md) | Apr 30, 2026 | RHEL 9 0:140.10.0-1.el9_8 | High | 25 | 0 |
| [ELSA-2026-10757](https://patchblox.com/security/data/fix/linux/elsa-2026-10757.md) | Apr 27, 2026 | ol 9 0:140.10.0-1.0.1.el9_7 | Patch now | 1 | 1 |
| [RHSA-2026:10757](https://patchblox.com/security/data/fix/linux/rhsa-2026-10757.md) | Apr 27, 2026 | RHEL 9 0:140.10.0-1.el9_7 | Patch now | 1 | 1 |
| [ALSA-2026:10757](https://patchblox.com/security/data/fix/linux/alsa-2026-10757.md) | Apr 27, 2026 | almalinux 9 140.10.0-1.el9_7.alma.1 | High | 25 | 0 |
| [RHSA-2026:7671](https://patchblox.com/security/data/fix/linux/rhsa-2026-7671.md) | Apr 15, 2026 | RHEL 9 0:140.9.1-1.el9_7 | High | 5 | 0 |
| [RHSA-2026:5930](https://patchblox.com/security/data/fix/linux/rhsa-2026-5930.md) | Apr 15, 2026 | RHEL 9 0:140.9.0-1.el9_7 | High | 37 | 0 |
| [ALSA-2026:7671](https://patchblox.com/security/data/fix/linux/alsa-2026-7671.md) | Apr 13, 2026 | almalinux 9 140.9.1-1.el9_7.alma.1 | High | 5 | 0 |
| [ELSA-2026-7671](https://patchblox.com/security/data/fix/linux/elsa-2026-7671.md) | Apr 13, 2026 | ol 9 0:140.9.1-1.0.1.el9_7 | High | 5 | 0 |
| [ELSA-2026-5930](https://patchblox.com/security/data/fix/linux/elsa-2026-5930.md) | Mar 27, 2026 | ol 9 0:140.9.0-1.0.1.el9_7 | High | 37 | 0 |
| [ALSA-2026:5930](https://patchblox.com/security/data/fix/linux/alsa-2026-5930.md) | Mar 26, 2026 | almalinux 9 140.9.0-1.el9_7.alma.1 | High | 37 | 0 |
| [RHSA-2026:3339](https://patchblox.com/security/data/fix/linux/rhsa-2026-3339.md) | Mar 12, 2026 | RHEL 9 0:140.8.0-2.el9_7 | High | 38 | 0 |
| [ELSA-2026-3339](https://patchblox.com/security/data/fix/linux/elsa-2026-3339.md) | Feb 26, 2026 | ol 9 0:140.8.0-2.0.1.el9_7 | High | 38 | 0 |
| [ALSA-2026:3339](https://patchblox.com/security/data/fix/linux/alsa-2026-3339.md) | Feb 25, 2026 | almalinux 9 140.8.0-2.el9_7.alma.1 | High | 38 | 0 |
| [RHSA-2026:0694](https://patchblox.com/security/data/fix/linux/rhsa-2026-0694.md) | Jan 16, 2026 | RHEL 9 0:140.7.0-1.el9_7 | High | 13 | 0 |
| [ELSA-2026-0694](https://patchblox.com/security/data/fix/linux/elsa-2026-0694.md) | Jan 16, 2026 | ol 9 0:140.7.0-1.0.1.el9_7 | High | 13 | 0 |
| [ALSA-2026:0694](https://patchblox.com/security/data/fix/linux/alsa-2026-0694.md) | Jan 15, 2026 | almalinux 9 140.7.0-1.el9_7.alma.1 | High | 13 | 0 |
| [ALSA-2025:23034](https://patchblox.com/security/data/fix/linux/alsa-2025-23034.md) | Dec 10, 2025 | almalinux 9 140.6.0-1.el9_7.alma.1 | High | 10 | 0 |
| [ELSA-2025-23034](https://patchblox.com/security/data/fix/linux/elsa-2025-23034.md) | Dec 10, 2025 | ol 9 0:140.6.0-1.0.1.el9_7 | High | 10 | 0 |
| [RHSA-2025:23034](https://patchblox.com/security/data/fix/linux/rhsa-2025-23034.md) | Dec 10, 2025 | RHEL 9 0:140.6.0-1.el9_7 | High | 10 | 0 |
| [ELSA-2025-21280](https://patchblox.com/security/data/fix/linux/elsa-2025-21280.md) | Nov 25, 2025 | ol 9 0:140.5.0-1.0.1.el9_7 | High | 9 | 0 |
| [ALSA-2025:21280](https://patchblox.com/security/data/fix/linux/alsa-2025-21280.md) | Nov 13, 2025 | almalinux 9 140.5.0-1.el9_7.alma.1 | High | 9 | 0 |
| [RHSA-2025:21280](https://patchblox.com/security/data/fix/linux/rhsa-2025-21280.md) | Nov 13, 2025 | RHEL 9 0:140.5.0-1.el9_7 | High | 9 | 0 |
| [ELSA-2025-18155](https://patchblox.com/security/data/fix/linux/elsa-2025-18155.md) | Oct 16, 2025 | ol 9 0:140.4.0-3.0.1.el9_6 | High | 7 | 0 |
| [ALSA-2025:18155](https://patchblox.com/security/data/fix/linux/alsa-2025-18155.md) | Oct 15, 2025 | almalinux 9 140.4.0-3.el9_6.alma.1 | High | 7 | 0 |
| [RHSA-2025:18155](https://patchblox.com/security/data/fix/linux/rhsa-2025-18155.md) | Oct 15, 2025 | RHEL 9 0:140.4.0-3.el9_6 | High | 7 | 0 |
| [ELSA-2025-16108](https://patchblox.com/security/data/fix/linux/elsa-2025-16108.md) | Sep 18, 2025 | ol 9 0:140.3.0-1.0.1.el9_6 | High | 7 | 0 |
| [RHSA-2025:16108](https://patchblox.com/security/data/fix/linux/rhsa-2025-16108.md) | Sep 17, 2025 | RHEL 9 0:140.3.0-1.el9_6 | High | 8 | 0 |
| [ALSA-2025:16108](https://patchblox.com/security/data/fix/linux/alsa-2025-16108.md) | Sep 17, 2025 | almalinux 9 140.3.0-1.el9_6.alma.1 | High | 7 | 0 |
| [ALSA-2025:14416](https://patchblox.com/security/data/fix/linux/alsa-2025-14416.md) | Aug 25, 2025 | almalinux 9 128.14.0-2.el9_6.alma.1 | High | 5 | 0 |
| [ELSA-2025-14416](https://patchblox.com/security/data/fix/linux/elsa-2025-14416.md) | Aug 25, 2025 | ol 9 0:128.14.0-2.0.1.el9_6 | High | 5 | 0 |
| [RHSA-2025:14416](https://patchblox.com/security/data/fix/linux/rhsa-2025-14416.md) | Aug 25, 2025 | RHEL 9 0:128.14.0-2.el9_6 | High | 5 | 0 |
| [ALSA-2025:11748](https://patchblox.com/security/data/fix/linux/alsa-2025-11748.md) | Jul 24, 2025 | almalinux 9 128.13.0-1.el9_6.alma.1 | High | 9 | 0 |
| [ELSA-2025-11748](https://patchblox.com/security/data/fix/linux/elsa-2025-11748.md) | Jul 24, 2025 | ol 9 0:128.13.0-1.0.1.el9_6 | High | 9 | 0 |
| [RHSA-2025:11748](https://patchblox.com/security/data/fix/linux/rhsa-2025-11748.md) | Jul 24, 2025 | RHEL 9 0:128.13.0-1.el9_6 | High | 9 | 0 |
| [ALSA-2025:10072](https://patchblox.com/security/data/fix/linux/alsa-2025-10072.md) | Jul 1, 2025 | almalinux 9 128.12.0-1.el9_6.alma.1 | High | 4 | 0 |
| [ELSA-2025-10072](https://patchblox.com/security/data/fix/linux/elsa-2025-10072.md) | Jul 1, 2025 | ol 9 0:128.12.0-1.0.1.el9_6 | High | 4 | 0 |
| [RHSA-2025:10072](https://patchblox.com/security/data/fix/linux/rhsa-2025-10072.md) | Jul 1, 2025 | RHEL 9 0:128.12.0-1.el9_6 | High | 4 | 0 |
| [RHSA-2025:8293](https://patchblox.com/security/data/fix/linux/rhsa-2025-8293.md) | May 29, 2025 | RHEL 9 0:128.11.0-1.el9_6 | High | 7 | 0 |
| [ALSA-2025:8293](https://patchblox.com/security/data/fix/linux/alsa-2025-8293.md) | May 29, 2025 | almalinux 9 128.11.0-1.el9_6.alma.1 | High | 6 | 0 |
| [ELSA-2025-8293](https://patchblox.com/security/data/fix/linux/elsa-2025-8293.md) | May 29, 2025 | ol 9 0:128.11.0-1.0.1.el9_6 | High | 6 | 0 |
| [ELSA-2025-8049](https://patchblox.com/security/data/fix/linux/elsa-2025-8049.md) | May 22, 2025 | ol 9 0:128.10.1-1.0.1.el9_6 | High | 2 | 0 |
| [ALSA-2025:8049](https://patchblox.com/security/data/fix/linux/alsa-2025-8049.md) | May 20, 2025 | almalinux 9 128.10.1-1.el9_6.alma.1 | High | 2 | 0 |
| [RHSA-2025:8049](https://patchblox.com/security/data/fix/linux/rhsa-2025-8049.md) | May 20, 2025 | RHEL 9 0:128.10.1-1.el9_6 | High | 2 | 0 |
| [ALSA-2025:7428](https://patchblox.com/security/data/fix/linux/alsa-2025-7428.md) | May 13, 2025 | almalinux 9 128.10.0-1.el9_6.alma.1 | High | 5 | 0 |
| [RHSA-2025:7428](https://patchblox.com/security/data/fix/linux/rhsa-2025-7428.md) | May 13, 2025 | RHEL 9 0:128.10.0-1.el9_6 | High | 5 | 0 |
| [ELSA-2025-4443](https://patchblox.com/security/data/fix/linux/elsa-2025-4443.md) | May 5, 2025 | ol 9 0:128.10.0-1.0.1.el9_5 | High | 5 | 0 |
| [ALSA-2025:3556](https://patchblox.com/security/data/fix/linux/alsa-2025-3556.md) | Apr 3, 2025 | almalinux 9 128.9.0-2.el9_5 | High | 3 | 0 |
| [ELSA-2025-3556](https://patchblox.com/security/data/fix/linux/elsa-2025-3556.md) | Apr 3, 2025 | ol 9 0:128.9.0-2.0.1.el9_5 | High | 3 | 0 |
| [RHSA-2025:3556](https://patchblox.com/security/data/fix/linux/rhsa-2025-3556.md) | Apr 3, 2025 | RHEL 9 0:128.9.0-2.el9_5 | High | 3 | 0 |
| [ALSA-2025:2359](https://patchblox.com/security/data/fix/linux/alsa-2025-2359.md) | Mar 5, 2025 | almalinux 9 128.8.0-1.el9_5 | High | 9 | 0 |
| [ELSA-2025-2359](https://patchblox.com/security/data/fix/linux/elsa-2025-2359.md) | Mar 5, 2025 | ol 9 0:128.8.0-1.0.1.el9_5 | High | 9 | 0 |
| [RHSA-2025:2359](https://patchblox.com/security/data/fix/linux/rhsa-2025-2359.md) | Mar 5, 2025 | RHEL 9 0:128.8.0-1.el9_5 | High | 9 | 0 |
| [ALSA-2025:1066](https://patchblox.com/security/data/fix/linux/alsa-2025-1066.md) | Feb 5, 2025 | almalinux 9 128.7.0-1.el9_5 | High | 8 | 0 |
| [ELSA-2025-1066](https://patchblox.com/security/data/fix/linux/elsa-2025-1066.md) | Feb 5, 2025 | ol 9 0:128.7.0-1.0.1.el9_5 | High | 8 | 0 |
| [RHSA-2025:1066](https://patchblox.com/security/data/fix/linux/rhsa-2025-1066.md) | Feb 5, 2025 | RHEL 9 0:128.7.0-1.el9_5 | High | 8 | 0 |
| [ELSA-2025-0080](https://patchblox.com/security/data/fix/linux/elsa-2025-0080.md) | Jan 10, 2025 | ol 9 0:128.6.0-1.0.1.el9_5 | High | 7 | 0 |
| [ALSA-2025:0080](https://patchblox.com/security/data/fix/linux/alsa-2025-0080.md) | Jan 8, 2025 | almalinux 9 128.6.0-1.el9_5 | High | 7 | 0 |
| [RHSA-2025:0080](https://patchblox.com/security/data/fix/linux/rhsa-2025-0080.md) | Jan 8, 2025 | RHEL 9 0:128.6.0-1.el9_5 | High | 7 | 0 |
| [ELSA-2024-10702](https://patchblox.com/security/data/fix/linux/elsa-2024-10702.md) | Dec 3, 2024 | ol 9 0:128.5.1-1.0.1.el9_5 | High | 6 | 0 |
| [ALSA-2024:10702](https://patchblox.com/security/data/fix/linux/alsa-2024-10702.md) | Dec 2, 2024 | almalinux 9 128.5.1-1.el9_5 | High | 6 | 0 |
| [RHSA-2024:10702](https://patchblox.com/security/data/fix/linux/rhsa-2024-10702.md) | Dec 2, 2024 | RHEL 9 0:128.5.1-1.el9_5 | High | 6 | 0 |
| [ALSA-2024:9554](https://patchblox.com/security/data/fix/linux/alsa-2024-9554.md) | Nov 13, 2024 | almalinux 9 128.4.0-1.el9_5 | Patch now | 11 | 1 |
| [RHSA-2024:9554](https://patchblox.com/security/data/fix/linux/rhsa-2024-9554.md) | Nov 13, 2024 | RHEL 9 0:128.4.0-1.el9_5 | Patch now | 11 | 1 |
| [ELSA-2024-8726](https://patchblox.com/security/data/fix/linux/elsa-2024-8726.md) | Nov 1, 2024 | ol 9 0:128.4.0-1.0.1.el9_4 | High | 10 | 0 |
| [ELSA-2024-7958](https://patchblox.com/security/data/fix/linux/elsa-2024-7958.md) | Oct 10, 2024 | ol 9 0:128.3.1-2.0.1.el9_4 | Patch now | 1 | 1 |
| [ALSA-2024:7505](https://patchblox.com/security/data/fix/linux/alsa-2024-7505.md) | Oct 2, 2024 | almalinux 9 128.3.0-1.el9_4.alma.1 | High | 5 | 0 |
| [ELSA-2024-7505](https://patchblox.com/security/data/fix/linux/elsa-2024-7505.md) | Oct 2, 2024 | ol 9 0:128.3.0-1.0.1.el9_4 | High | 5 | 0 |
| [RHSA-2024:7505](https://patchblox.com/security/data/fix/linux/rhsa-2024-7505.md) | Oct 2, 2024 | RHEL 9 0:128.3.0-1.el9_4 | High | 5 | 0 |

Showing the newest 100 of 166 fixes.

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo