# Mozilla Firefox (en-US) 97.0

Mozilla Firefox (en-US) 97.0, released February 8, 2022, fixes 12 CVEs in Mozilla Firefox (en-US). None of them is reported as exploited. Patch Radar priority: High. The latest Mozilla Firefox (en-US) is 159.0, which also fixes every one of these CVEs.

- Web page: https://patchblox.com/security/fix/windows-app/mozilla.firefox-97.0
- Platform: Windows apps
- Released: Feb 8, 2022
- Priority: High (Closes CVE-2021-30547, high severity)
- CVEs: 12, exploited: 0, on CISA KEV: 0
- Superseded by: [Mozilla Firefox (en-US) 159.0](https://patchblox.com/security/data/product/windows-app/mozilla-firefox-en-us.md), the latest version, which also fixes every CVE listed here

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Mozilla Firefox (en-US)](https://patchblox.com/security/data/product/windows-app/mozilla-firefox-en-us.md) |  | 97.0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-30547](https://patchblox.com/security/data/cve/CVE-2021-30547.md) | High | Chromium: CVE-2021-30547 Out of bounds write in ANGLE | 8.8 | 0.0361 |  |
| [CVE-2022-22756](https://patchblox.com/security/data/cve/CVE-2022-22756.md) | High | Mozilla Firefox ESR and 4 others: Improper Control of Generation of Code ('Code Injection') | 9.6 | 0.0096 |  |
| [CVE-2022-22760](https://patchblox.com/security/data/cve/CVE-2022-22760.md) | High | Mozilla Firefox ESR and 4 others: Generation of Error Message Containing Sensitive Information | 9.6 | 0.0081 |  |
| [CVE-2022-22759](https://patchblox.com/security/data/cve/CVE-2022-22759.md) | High | Mozilla Firefox ESR and 4 others: Protection Mechanism Failure | 9.6 | 0.0079 |  |
| [CVE-2022-22761](https://patchblox.com/security/data/cve/CVE-2022-22761.md) | High | Mozilla Firefox ESR and 4 others: Protection Mechanism Failure | 9.6 | 0.0079 |  |
| [CVE-2022-22764](https://patchblox.com/security/data/cve/CVE-2022-22764.md) | High | Mozilla Firefox ESR and 4 others: Out-of-bounds Write | 9.6 | 0.0075 |  |
| [CVE-2022-22754](https://patchblox.com/security/data/cve/CVE-2022-22754.md) | High | Mozilla Firefox ESR and 4 others: Incorrect Authorization | 9.6 | 0.0067 |  |
| [CVE-2022-22753](https://patchblox.com/security/data/cve/CVE-2022-22753.md) | High | Mozilla Firefox ESR and 4 others: Time-of-check Time-of-use (TOCTOU) Race Condition | 7.1 | 0.0065 |  |
| [CVE-2022-22755](https://patchblox.com/security/data/cve/CVE-2022-22755.md) | High | Mozilla Firefox ESR and 2 others: Operation on a Resource after Expiration or Release | 8.8 | 0.0062 |  |
| [CVE-2022-0843](https://patchblox.com/security/data/cve/CVE-2022-0843.md) | High | Mozilla Firefox ESR and 2 others: Out-of-bounds Write | 8.8 | 0.0057 |  |
| [CVE-2022-0511](https://patchblox.com/security/data/cve/CVE-2022-0511.md) | High | Mozilla Firefox ESR and 2 others: Out-of-bounds Write | 8.8 | 0.0056 |  |
| [CVE-2022-22757](https://patchblox.com/security/data/cve/CVE-2022-22757.md) | Routine | Mozilla Firefox ESR and 2 others: Insufficient Verification of Data Authenticity | 6.5 | 0.0025 |  |

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Data as of 2026-11-08T19:12:23Z 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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