# Mozilla Firefox ESR (en-US) 140.10.2

Mozilla Firefox ESR (en-US) 140.10.2, released May 7, 2026, fixes 2 CVEs in Mozilla Firefox ESR (en-US). None of them is reported as exploited. Patch Radar priority: High. The latest Mozilla Firefox ESR (en-US) is 153.7.0, which also fixes every one of these CVEs.

- Web page: https://patchblox.com/security/fix/windows-app/mozilla.firefox.esr-140.10.2
- Platform: Windows apps
- Released: May 7, 2026
- Priority: High (Closes CVE-2026-8094, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Superseded by: [Mozilla Firefox ESR (en-US) 153.7.0](https://patchblox.com/security/data/product/windows-app/mozilla-firefox-esr-en-us.md), the latest version, which also fixes every CVE listed here

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Mozilla Firefox ESR (en-US)](https://patchblox.com/security/data/product/windows-app/mozilla-firefox-esr-en-us.md) |  | 140.10.2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-8094](https://patchblox.com/security/data/cve/CVE-2026-8094.md) | High | Other issue in the WebRTC component | 9.8 | 0.0045 |  |
| [CVE-2026-8092](https://patchblox.com/security/data/cve/CVE-2026-8092.md) | High | Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thunderbird 150.0.2 | 8.1 | 0.0041 |  |

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Data as of 2026-11-11T13:47:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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