# Firefox Developer Edition (te) 144.0

Firefox Developer Edition (te) 144.0, released October 3, 2025, fixes 13 CVEs in Firefox Developer Edition (te). None of them is reported as exploited. Patch Radar priority: Urgent. The latest Firefox Developer Edition (te) is 151.0, which also fixes every one of these CVEs.

- Web page: https://patchblox.com/security/fix/windows-app/mozilla.firefox.developeredition.te-144.0
- Platform: Windows apps
- Released: Oct 3, 2025
- Priority: Urgent (Closes CVE-2025-11721, rated Critical)
- CVEs: 13, exploited: 0, on CISA KEV: 0
- Superseded by: [Firefox Developer Edition (te) 151.0](https://patchblox.com/security/data/product/windows-app/firefox-developer-edition-te.md), the latest version, which also fixes every CVE listed here

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Firefox Developer Edition (te)](https://patchblox.com/security/data/product/windows-app/firefox-developer-edition-te.md) |  | 144.0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-11721](https://patchblox.com/security/data/cve/CVE-2025-11721.md) | Urgent | Memory safety bug fixed in Firefox 144 and Thunderbird 144 | 9.8 | 0.0037 |  |
| [CVE-2025-11719](https://patchblox.com/security/data/cve/CVE-2025-11719.md) | Urgent | Use-after-free caused by the native messaging web extension API on Windows | 9.8 | 0.0035 |  |
| [CVE-2025-11708](https://patchblox.com/security/data/cve/CVE-2025-11708.md) | High | Use-after-free in MediaTrackGraphImpl::GetInstance() | 9.8 | 0.0051 |  |
| [CVE-2025-11709](https://patchblox.com/security/data/cve/CVE-2025-11709.md) | High | Out of bounds read/write in a privileged process triggered by WebGL textures | 9.8 | 0.0042 |  |
| [CVE-2025-11710](https://patchblox.com/security/data/cve/CVE-2025-11710.md) | High | Cross-process information leaked due to malicious IPC messages | 9.8 | 0.0042 |  |
| [CVE-2025-11714](https://patchblox.com/security/data/cve/CVE-2025-11714.md) | High | Memory safety bugs fixed in Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 | 8.8 | 0.0034 |  |
| [CVE-2025-11715](https://patchblox.com/security/data/cve/CVE-2025-11715.md) | High | Memory safety bugs fixed in Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144 | 8.8 | 0.0033 |  |
| [CVE-2025-10527](https://patchblox.com/security/data/cve/CVE-2025-10527.md) | High | Sandbox escape due to use-after-free in the Graphics: Canvas2D component | 7.5 | 0.0029 |  |
| [CVE-2025-11713](https://patchblox.com/security/data/cve/CVE-2025-11713.md) | High | Potential user-assisted code execution in “Copy as cURL” command | 8.1 | 0.0029 |  |
| [CVE-2025-11152](https://patchblox.com/security/data/cve/CVE-2025-11152.md) | High | Sandbox escape due to integer overflow in the Graphics: Canvas2D component | 8.6 | 0.0028 |  |
| [CVE-2025-11153](https://patchblox.com/security/data/cve/CVE-2025-11153.md) | High | JIT miscompilation in the JavaScript Engine: JIT component | 7.5 | 0.0024 |  |
| [CVE-2025-11711](https://patchblox.com/security/data/cve/CVE-2025-11711.md) | High | Some non-writable Object properties could be modified | 7.5 | 0.0023 |  |
| [CVE-2025-11712](https://patchblox.com/security/data/cve/CVE-2025-11712.md) | High | An OBJECT tag type attribute overrode browser behavior on web resources without a content-type | 7.5 | 0.0022 |  |

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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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