Firefox Developer Edition (en-US) 129.0
Firefox Developer Edition (en-US) 129.0, released July 9, 2024, fixes 18 CVEs in Firefox Developer Edition (en-US). None of them is reported as exploited. Patch Radar priority: High. The latest Firefox Developer Edition (en-US) is 156.0, which also fixes every one of these CVEs.
Superseded. The latest Firefox Developer Edition (en-US) is 156.0, which also fixes every CVE on this page. Install that instead.
Priority of the 18 CVEs
Applies to
| Product | Version |
|---|---|
| Firefox Developer Edition (en-US) | 129.0 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2024-7520 | Mozilla Firefox ESR and 6 others: Improper Control of Generation of Code ('Code Injection') | 9.6 | 0.0064 | None reported |
| High | CVE-2024-7522 | Mozilla Firefox ESR and 6 others: Out-of-bounds Read | 9.6 | 0.0063 | None reported |
| High | CVE-2024-7519 | Mozilla Firefox ESR and 6 others: Out-of-bounds Write | 9.6 | 0.0063 | None reported |
| High | CVE-2024-7521 | Mozilla Firefox ESR and 6 others: Improper Handling of Exceptional Conditions | 9.6 | 0.0062 | None reported |
| High | CVE-2024-7527 | Mozilla Firefox ESR and 6 others: Use After Free | 9.6 | 0.0061 | None reported |
| High | CVE-2024-7525 | Mozilla Firefox ESR and 6 others: Improper Access Control | 9.6 | 0.0060 | None reported |
| High | CVE-2024-7526 | Mozilla Firefox ESR and 6 others: Use of Uninitialized Resource | 9.6 | 0.0058 | None reported |
| High | CVE-2024-7529 | Mozilla Firefox ESR and 6 others: User Interface (UI) Misrepresentation of Critical Information | 9.6 | 0.0053 | None reported |
| High | CVE-2024-7528 | Mozilla Firefox ESR and 6 others: Use After Free | 9.6 | 0.0052 | None reported |
| High | CVE-2024-7518 | Mozilla Firefox ESR and 6 others: Improper Restriction of Rendered UI Layers or Frames | 9.6 | 0.0051 | None reported |
| High | CVE-2025-4093 | Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10 | 8.8 | 0.0049 | None reported |
| High | CVE-2024-7524 | Mozilla Firefox ESR and 4 others: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 9.6 | 0.0049 | None reported |
| High | CVE-2025-5269 | Memory safety bug fixed in Firefox ESR 128.11 and Thunderbird 128.11 | 8.8 | 0.0048 | None reported |
| High | CVE-2024-8900 | Mozilla Firefox ESR and 7 others: Incorrect Permission Assignment for Critical Resource | 7.5 | 0.0043 | None reported |
| High | CVE-2024-7530 | Mozilla Firefox ESR and 4 others: Use After Free | 8.8 | 0.0038 | None reported |
| High | CVE-2024-7523 | Mozilla Firefox ESR and 4 others: Improper Restriction of Rendered UI Layers or Frames | 8.1 | 0.0028 | None reported |
| Routine | CVE-2025-4084 | Potential local code execution in "copy as cURL" command | 5.7 | 0.0045 | None reported |
| Routine | CVE-2024-7531 | Mozilla Firefox ESR and 4 others: Time-of-check Time-of-use (TOCTOU) Race Condition | 6.5 | 0.0044 | None reported |
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