# Firefox Developer Edition (fa) 136.0

Firefox Developer Edition (fa) 136.0, released February 21, 2025, fixes 14 CVEs in Firefox Developer Edition (fa). None of them is reported as exploited. Patch Radar priority: Urgent. The latest Firefox Developer Edition (fa) is 151.0, which also fixes every one of these CVEs.

- Web page: https://patchblox.com/security/fix/windows-app/mozilla.firefox.developeredition.fa-136.0
- Platform: Windows apps
- Released: Feb 21, 2025
- Priority: Urgent (Closes CVE-2025-1941, rated Critical)
- CVEs: 14, exploited: 0, on CISA KEV: 0
- Superseded by: [Firefox Developer Edition (fa) 151.0](https://patchblox.com/security/data/product/windows-app/firefox-developer-edition-fa.md), the latest version, which also fixes every CVE listed here

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Firefox Developer Edition (fa)](https://patchblox.com/security/data/product/windows-app/firefox-developer-edition-fa.md) |  | 136.0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-1941](https://patchblox.com/security/data/cve/CVE-2025-1941.md) | Urgent | Lock screen setting bypass in Firefox Focus for Android | 9.1 | 0.0037 |  |
| [CVE-2025-1931](https://patchblox.com/security/data/cve/CVE-2025-1931.md) | High | Use-after-free in WebTransportChild | 8.8 | 0.0054 |  |
| [CVE-2025-3030](https://patchblox.com/security/data/cve/CVE-2025-3030.md) | High | Memory safety bugs fixed in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9 | 8.8 | 0.0051 |  |
| [CVE-2025-1942](https://patchblox.com/security/data/cve/CVE-2025-1942.md) | High | Disclosure of uninitialized memory when .toUpperCase() causes string to get longer | 9.8 | 0.0048 |  |
| [CVE-2025-1934](https://patchblox.com/security/data/cve/CVE-2025-1934.md) | High | Unexpected GC during RegExp bailout processing | 8.8 | 0.0045 |  |
| [CVE-2025-1936](https://patchblox.com/security/data/cve/CVE-2025-1936.md) | High | Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents | 8.8 | 0.0045 |  |
| [CVE-2025-1943](https://patchblox.com/security/data/cve/CVE-2025-1943.md) | High | Memory safety bugs fixed in Firefox 136 and Thunderbird 136 | 8.2 | 0.0043 |  |
| [CVE-2025-1932](https://patchblox.com/security/data/cve/CVE-2025-1932.md) | High | Inconsistent comparator in XSLT sorting led to out-of-bounds access | 8.8 | 0.0042 |  |
| [CVE-2025-1930](https://patchblox.com/security/data/cve/CVE-2025-1930.md) | High | AudioIPC StreamData could trigger a use-after-free in the Browser process | 8.8 | 0.0040 |  |
| [CVE-2025-1935](https://patchblox.com/security/data/cve/CVE-2025-1935.md) | High | Clickjacking the registerProtocolHandler info-bar | 8.8 | 0.0034 |  |
| [CVE-2025-1933](https://patchblox.com/security/data/cve/CVE-2025-1933.md) | High | JIT corruption of WASM i32 return values on 64-bit CPUs | 8.8 | 0.0032 |  |
| [CVE-2025-1940](https://patchblox.com/security/data/cve/CVE-2025-1940.md) | High | Android Intent confirmation prompt tapjacking using Select options | 7.1 | 0.0025 |  |
| [CVE-2025-1414](https://patchblox.com/security/data/cve/CVE-2025-1414.md) | Routine | Memory safety bugs fixed in Firefox 135.0.1 | 6.5 | 0.0045 |  |
| [CVE-2025-1939](https://patchblox.com/security/data/cve/CVE-2025-1939.md) | Routine | Tapjacking in Android Custom Tabs using transition animations | 3.9 | 0.0019 |  |

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Data as of 2026-11-09T19:38:12Z 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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