# CVE-2026-84142: Internally found bugs fixed in Thunderbird 155

CVE-2026-84142 is fixed in 170 products on 2 platforms, first by Mozilla Firefox 155.0, released August 26, 2026. 200 other affected products have no fix yet. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-84142
- Priority: Urgent
- CVSS: 9.8
- EPSS: 0.0056
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 1, 2026
- Weakness: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-84142

## Description

Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155 and Thunderbird 155.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Firefox Developer Edition (en-US) | 156.0 | [Firefox Developer Edition (en-US) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition-156.0.md) | Sep 2, 2026 |
| Windows apps | Mozilla Firefox (ach) | 155.0 | [Mozilla Firefox (ach) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ach-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (af) | 155.0 | [Mozilla Firefox (af) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.af-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (an) | 155.0 | [Mozilla Firefox (an) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.an-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ar) | 155.0 | [Mozilla Firefox (ar) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ar-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ast) | 155.0 | [Mozilla Firefox (ast) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ast-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (az) | 155.0 | [Mozilla Firefox (az) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.az-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (be) | 155.0 | [Mozilla Firefox (be) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.be-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (bg) | 155.0 | [Mozilla Firefox (bg) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bg-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (bn) | 155.0 | [Mozilla Firefox (bn) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bn-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (br) | 155.0 | [Mozilla Firefox (br) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.br-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (bs) | 155.0 | [Mozilla Firefox (bs) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bs-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ca) | 155.0 | [Mozilla Firefox (ca) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ca-valencia) | 155.0 | [Mozilla Firefox (ca-valencia) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-valencia-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (cak) | 155.0 | [Mozilla Firefox (cak) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cak-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (cs) | 155.0 | [Mozilla Firefox (cs) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cs-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (cy) | 155.0 | [Mozilla Firefox (cy) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cy-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (da) | 155.0 | [Mozilla Firefox (da) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.da-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (de) | 155.0 | [Mozilla Firefox (de) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.de-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (dsb) | 155.0 | [Mozilla Firefox (dsb) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.dsb-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (el) | 155.0 | [Mozilla Firefox (el) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.el-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (en-CA) | 155.0 | [Mozilla Firefox (en-CA) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-ca-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (en-GB) | 155.0 | [Mozilla Firefox (en-GB) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-gb-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (en-US) | 155.0 | [Mozilla Firefox (en-US) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (eo) | 155.0 | [Mozilla Firefox (eo) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eo-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (es-AR) | 155.0 | [Mozilla Firefox (es-AR) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-ar-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (es-CL) | 155.0 | [Mozilla Firefox (es-CL) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-cl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (es-ES) | 155.0 | [Mozilla Firefox (es-ES) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-es-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (es-MX) | 155.0 | [Mozilla Firefox (es-MX) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-mx-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (et) | 155.0 | [Mozilla Firefox (et) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.et-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (eu) | 155.0 | [Mozilla Firefox (eu) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eu-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (fa) | 155.0 | [Mozilla Firefox (fa) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fa-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ff) | 155.0 | [Mozilla Firefox (ff) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ff-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (fi) | 155.0 | [Mozilla Firefox (fi) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fi-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (fr) | 155.0 | [Mozilla Firefox (fr) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fr-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (fur) | 155.0 | [Mozilla Firefox (fur) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fur-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (fy-NL) | 155.0 | [Mozilla Firefox (fy-NL) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fy-nl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ga-IE) | 155.0 | [Mozilla Firefox (ga-IE) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ga-ie-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (gd) | 155.0 | [Mozilla Firefox (gd) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gd-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (gl) | 155.0 | [Mozilla Firefox (gl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (gn) | 155.0 | [Mozilla Firefox (gn) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gn-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (gu-IN) | 155.0 | [Mozilla Firefox (gu-IN) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gu-in-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (he) | 155.0 | [Mozilla Firefox (he) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.he-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (hi-IN) | 155.0 | [Mozilla Firefox (hi-IN) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hi-in-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (hr) | 155.0 | [Mozilla Firefox (hr) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hr-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (hsb) | 155.0 | [Mozilla Firefox (hsb) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hsb-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (hu) | 155.0 | [Mozilla Firefox (hu) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hu-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (hy-AM) | 155.0 | [Mozilla Firefox (hy-AM) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hy-am-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ia) | 155.0 | [Mozilla Firefox (ia) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ia-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (id) | 155.0 | [Mozilla Firefox (id) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.id-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (is) | 155.0 | [Mozilla Firefox (is) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.is-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (it) | 155.0 | [Mozilla Firefox (it) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.it-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ja) | 155.0 | [Mozilla Firefox (ja) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ja-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ka) | 155.0 | [Mozilla Firefox (ka) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ka-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (kab) | 155.0 | [Mozilla Firefox (kab) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kab-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (kk) | 155.0 | [Mozilla Firefox (kk) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kk-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (km) | 155.0 | [Mozilla Firefox (km) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.km-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (kn) | 155.0 | [Mozilla Firefox (kn) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kn-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ko) | 155.0 | [Mozilla Firefox (ko) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ko-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (lij) | 155.0 | [Mozilla Firefox (lij) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lij-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (lt) | 155.0 | [Mozilla Firefox (lt) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lt-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (lv) | 155.0 | [Mozilla Firefox (lv) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lv-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (mk) | 155.0 | [Mozilla Firefox (mk) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mk-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (mr) | 155.0 | [Mozilla Firefox (mr) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mr-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ms) | 155.0 | [Mozilla Firefox (ms) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ms-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (my) | 155.0 | [Mozilla Firefox (my) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.my-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (nb-NO) | 155.0 | [Mozilla Firefox (nb-NO) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nb-no-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ne-NP) | 155.0 | [Mozilla Firefox (ne-NP) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ne-np-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (nl) | 155.0 | [Mozilla Firefox (nl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (nn-NO) | 155.0 | [Mozilla Firefox (nn-NO) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nn-no-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (oc) | 155.0 | [Mozilla Firefox (oc) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.oc-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (pa-IN) | 155.0 | [Mozilla Firefox (pa-IN) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pa-in-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (pl) | 155.0 | [Mozilla Firefox (pl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (pt-BR) | 155.0 | [Mozilla Firefox (pt-BR) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-br-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (pt-PT) | 155.0 | [Mozilla Firefox (pt-PT) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-pt-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (rm) | 155.0 | [Mozilla Firefox (rm) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.rm-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ro) | 155.0 | [Mozilla Firefox (ro) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ro-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ru) | 155.0 | [Mozilla Firefox (ru) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ru-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (sc) | 155.0 | [Mozilla Firefox (sc) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sc-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (sco) | 155.0 | [Mozilla Firefox (sco) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sco-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (si) | 155.0 | [Mozilla Firefox (si) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.si-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (sk) | 155.0 | [Mozilla Firefox (sk) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sk-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (sl) | 155.0 | [Mozilla Firefox (sl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (son) | 155.0 | [Mozilla Firefox (son) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.son-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (sq) | 155.0 | [Mozilla Firefox (sq) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sq-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (sr) | 155.0 | [Mozilla Firefox (sr) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sr-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (sv-SE) | 155.0 | [Mozilla Firefox (sv-SE) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sv-se-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (szl) | 155.0 | [Mozilla Firefox (szl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.szl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ta) | 155.0 | [Mozilla Firefox (ta) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ta-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (te) | 155.0 | [Mozilla Firefox (te) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.te-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (tg) | 155.0 | [Mozilla Firefox (tg) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tg-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (th) | 155.0 | [Mozilla Firefox (th) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.th-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (tl) | 155.0 | [Mozilla Firefox (tl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (tr) | 155.0 | [Mozilla Firefox (tr) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tr-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (trs) | 155.0 | [Mozilla Firefox (trs) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.trs-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (uk) | 155.0 | [Mozilla Firefox (uk) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uk-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (ur) | 155.0 | [Mozilla Firefox (ur) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ur-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (uz) | 155.0 | [Mozilla Firefox (uz) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uz-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (vi) | 155.0 | [Mozilla Firefox (vi) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.vi-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (xh) | 155.0 | [Mozilla Firefox (xh) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.xh-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (zh-CN) | 155.0 | [Mozilla Firefox (zh-CN) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-cn-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Firefox (zh-TW) | 155.0 | [Mozilla Firefox (zh-TW) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-tw-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (af) | 155.0 | [Mozilla Thunderbird (af) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.af-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ar) | 155.0 | [Mozilla Thunderbird (ar) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ar-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ast) | 155.0 | [Mozilla Thunderbird (ast) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ast-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (be) | 155.0 | [Mozilla Thunderbird (be) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.be-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (bg) | 155.0 | [Mozilla Thunderbird (bg) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.bg-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (br) | 155.0 | [Mozilla Thunderbird (br) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.br-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ca) | 155.0 | [Mozilla Thunderbird (ca) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ca-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (cak) | 155.0 | [Mozilla Thunderbird (cak) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cak-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (cs) | 155.0 | [Mozilla Thunderbird (cs) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cs-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (cy) | 155.0 | [Mozilla Thunderbird (cy) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cy-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (da) | 155.0 | [Mozilla Thunderbird (da) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.da-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (de) | 155.0 | [Mozilla Thunderbird (de) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.de-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (dsb) | 155.0 | [Mozilla Thunderbird (dsb) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.dsb-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (el) | 155.0 | [Mozilla Thunderbird (el) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.el-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (en-CA) | 155.0 | [Mozilla Thunderbird (en-CA) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-ca-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (en-GB) | 155.0 | [Mozilla Thunderbird (en-GB) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-gb-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (en-US) | 155.0 | [Mozilla Thunderbird (en-US) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (es-AR) | 155.0 | [Mozilla Thunderbird (es-AR) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-ar-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (es-ES) | 155.0 | [Mozilla Thunderbird (es-ES) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-es-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (es-MX) | 155.0 | [Mozilla Thunderbird (es-MX) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-mx-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (et) | 155.0 | [Mozilla Thunderbird (et) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.et-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (eu) | 155.0 | [Mozilla Thunderbird (eu) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.eu-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (fi) | 155.0 | [Mozilla Thunderbird (fi) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fi-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (fr) | 155.0 | [Mozilla Thunderbird (fr) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fr-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (fy-NL) | 155.0 | [Mozilla Thunderbird (fy-NL) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fy-nl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ga-IE) | 155.0 | [Mozilla Thunderbird (ga-IE) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ga-ie-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (gd) | 155.0 | [Mozilla Thunderbird (gd) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gd-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (gl) | 155.0 | [Mozilla Thunderbird (gl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (he) | 155.0 | [Mozilla Thunderbird (he) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.he-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (hr) | 155.0 | [Mozilla Thunderbird (hr) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hr-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (hsb) | 155.0 | [Mozilla Thunderbird (hsb) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hsb-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (hu) | 155.0 | [Mozilla Thunderbird (hu) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hu-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (hy-AM) | 155.0 | [Mozilla Thunderbird (hy-AM) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hy-am-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (id) | 155.0 | [Mozilla Thunderbird (id) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.id-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (is) | 155.0 | [Mozilla Thunderbird (is) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.is-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (it) | 155.0 | [Mozilla Thunderbird (it) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.it-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ja) | 155.0 | [Mozilla Thunderbird (ja) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ja-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ka) | 155.0 | [Mozilla Thunderbird (ka) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ka-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (kab) | 155.0 | [Mozilla Thunderbird (kab) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kab-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (kk) | 155.0 | [Mozilla Thunderbird (kk) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kk-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ko) | 155.0 | [Mozilla Thunderbird (ko) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ko-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (lt) | 155.0 | [Mozilla Thunderbird (lt) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lt-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (lv) | 155.0 | [Mozilla Thunderbird (lv) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lv-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ms) | 155.0 | [Mozilla Thunderbird (ms) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ms-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (nb-NO) | 155.0 | [Mozilla Thunderbird (nb-NO) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nb-no-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (nl) | 155.0 | [Mozilla Thunderbird (nl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (nn-NO) | 155.0 | [Mozilla Thunderbird (nn-NO) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nn-no-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (pa-IN) | 155.0 | [Mozilla Thunderbird (pa-IN) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pa-in-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (pl) | 155.0 | [Mozilla Thunderbird (pl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (pt-BR) | 155.0 | [Mozilla Thunderbird (pt-BR) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-br-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (pt-PT) | 155.0 | [Mozilla Thunderbird (pt-PT) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-pt-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (rm) | 155.0 | [Mozilla Thunderbird (rm) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.rm-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ro) | 155.0 | [Mozilla Thunderbird (ro) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ro-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (ru) | 155.0 | [Mozilla Thunderbird (ru) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ru-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (sk) | 155.0 | [Mozilla Thunderbird (sk) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sk-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (sl) | 155.0 | [Mozilla Thunderbird (sl) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sl-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (sq) | 155.0 | [Mozilla Thunderbird (sq) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sq-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (sr) | 155.0 | [Mozilla Thunderbird (sr) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sr-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (sv-SE) | 155.0 | [Mozilla Thunderbird (sv-SE) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sv-se-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (th) | 155.0 | [Mozilla Thunderbird (th) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.th-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (tr) | 155.0 | [Mozilla Thunderbird (tr) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.tr-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (uk) | 155.0 | [Mozilla Thunderbird (uk) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uk-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (uz) | 155.0 | [Mozilla Thunderbird (uz) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uz-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (vi) | 155.0 | [Mozilla Thunderbird (vi) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.vi-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (zh-CN) | 155.0 | [Mozilla Thunderbird (zh-CN) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-cn-155.0.md) | Sep 1, 2026 |
| Windows apps | Mozilla Thunderbird (zh-TW) | 155.0 | [Mozilla Thunderbird (zh-TW) 155.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-tw-155.0.md) | Sep 1, 2026 |
| macOS | Mozilla Firefox | 155.0 | [Mozilla Firefox 155.0](https://patchblox.com/security/data/fix/macos/org.mozilla.firefox-155.0.md) | Aug 26, 2026 |
| macOS | Mozilla Thunderbird | 155.0 | [Mozilla Thunderbird 155.0](https://patchblox.com/security/data/fix/macos/org.mozilla.thunderbird-155.0.md) | Aug 28, 2026 |

## No fix yet

| Platform | Product | Status |
|---|---|---|
| Windows apps | Firefox Developer Edition (ach) | no-fix |
| Windows apps | Firefox Developer Edition (af) | no-fix |
| Windows apps | Firefox Developer Edition (an) | no-fix |
| Windows apps | Firefox Developer Edition (ar) | no-fix |
| Windows apps | Firefox Developer Edition (ast) | no-fix |
| Windows apps | Firefox Developer Edition (az) | no-fix |
| Windows apps | Firefox Developer Edition (be) | no-fix |
| Windows apps | Firefox Developer Edition (bg) | no-fix |
| Windows apps | Firefox Developer Edition (bn) | no-fix |
| Windows apps | Firefox Developer Edition (br) | no-fix |
| Windows apps | Firefox Developer Edition (bs) | no-fix |
| Windows apps | Firefox Developer Edition (ca) | no-fix |
| Windows apps | Firefox Developer Edition (ca-valencia) | no-fix |
| Windows apps | Firefox Developer Edition (cak) | no-fix |
| Windows apps | Firefox Developer Edition (cs) | no-fix |
| Windows apps | Firefox Developer Edition (cy) | no-fix |
| Windows apps | Firefox Developer Edition (da) | no-fix |
| Windows apps | Firefox Developer Edition (de) | no-fix |
| Windows apps | Firefox Developer Edition (dsb) | no-fix |
| Windows apps | Firefox Developer Edition (el) | no-fix |
| Windows apps | Firefox Developer Edition (en-CA) | no-fix |
| Windows apps | Firefox Developer Edition (en-GB) | no-fix |
| Windows apps | Firefox Developer Edition (eo) | no-fix |
| Windows apps | Firefox Developer Edition (es-AR) | no-fix |
| Windows apps | Firefox Developer Edition (es-CL) | no-fix |
| Windows apps | Firefox Developer Edition (es-ES) | no-fix |
| Windows apps | Firefox Developer Edition (es-MX) | no-fix |
| Windows apps | Firefox Developer Edition (et) | no-fix |
| Windows apps | Firefox Developer Edition (eu) | no-fix |
| Windows apps | Firefox Developer Edition (fa) | no-fix |
| Windows apps | Firefox Developer Edition (ff) | no-fix |
| Windows apps | Firefox Developer Edition (fi) | no-fix |
| Windows apps | Firefox Developer Edition (fr) | no-fix |
| Windows apps | Firefox Developer Edition (fur) | no-fix |
| Windows apps | Firefox Developer Edition (fy-NL) | no-fix |
| Windows apps | Firefox Developer Edition (ga-IE) | no-fix |
| Windows apps | Firefox Developer Edition (gd) | no-fix |
| Windows apps | Firefox Developer Edition (gl) | no-fix |
| Windows apps | Firefox Developer Edition (gn) | no-fix |
| Windows apps | Firefox Developer Edition (gu-IN) | no-fix |
| Windows apps | Firefox Developer Edition (he) | no-fix |
| Windows apps | Firefox Developer Edition (hi-IN) | no-fix |
| Windows apps | Firefox Developer Edition (hr) | no-fix |
| Windows apps | Firefox Developer Edition (hsb) | no-fix |
| Windows apps | Firefox Developer Edition (hu) | no-fix |
| Windows apps | Firefox Developer Edition (hy-AM) | no-fix |
| Windows apps | Firefox Developer Edition (ia) | no-fix |
| Windows apps | Firefox Developer Edition (id) | no-fix |
| Windows apps | Firefox Developer Edition (is) | no-fix |
| Windows apps | Firefox Developer Edition (it) | no-fix |
| Windows apps | Firefox Developer Edition (ja) | no-fix |
| Windows apps | Firefox Developer Edition (ka) | no-fix |
| Windows apps | Firefox Developer Edition (kab) | no-fix |
| Windows apps | Firefox Developer Edition (kk) | no-fix |
| Windows apps | Firefox Developer Edition (km) | no-fix |
| Windows apps | Firefox Developer Edition (kn) | no-fix |
| Windows apps | Firefox Developer Edition (ko) | no-fix |
| Windows apps | Firefox Developer Edition (lij) | no-fix |
| Windows apps | Firefox Developer Edition (lt) | no-fix |
| Windows apps | Firefox Developer Edition (lv) | no-fix |
| Windows apps | Firefox Developer Edition (mk) | no-fix |
| Windows apps | Firefox Developer Edition (mr) | no-fix |
| Windows apps | Firefox Developer Edition (ms) | no-fix |
| Windows apps | Firefox Developer Edition (my) | no-fix |
| Windows apps | Firefox Developer Edition (nb-NO) | no-fix |
| Windows apps | Firefox Developer Edition (ne-NP) | no-fix |
| Windows apps | Firefox Developer Edition (nl) | no-fix |
| Windows apps | Firefox Developer Edition (nn-NO) | no-fix |
| Windows apps | Firefox Developer Edition (oc) | no-fix |
| Windows apps | Firefox Developer Edition (pa-IN) | no-fix |
| Windows apps | Firefox Developer Edition (pl) | no-fix |
| Windows apps | Firefox Developer Edition (pt-BR) | no-fix |
| Windows apps | Firefox Developer Edition (pt-PT) | no-fix |
| Windows apps | Firefox Developer Edition (rm) | no-fix |
| Windows apps | Firefox Developer Edition (ro) | no-fix |
| Windows apps | Firefox Developer Edition (ru) | no-fix |
| Windows apps | Firefox Developer Edition (sc) | no-fix |
| Windows apps | Firefox Developer Edition (sco) | no-fix |
| Windows apps | Firefox Developer Edition (si) | no-fix |
| Windows apps | Firefox Developer Edition (sk) | no-fix |
| Windows apps | Firefox Developer Edition (sl) | no-fix |
| Windows apps | Firefox Developer Edition (son) | no-fix |
| Windows apps | Firefox Developer Edition (sq) | no-fix |
| Windows apps | Firefox Developer Edition (sr) | no-fix |
| Windows apps | Firefox Developer Edition (sv-SE) | no-fix |
| Windows apps | Firefox Developer Edition (szl) | no-fix |
| Windows apps | Firefox Developer Edition (ta) | no-fix |
| Windows apps | Firefox Developer Edition (te) | no-fix |
| Windows apps | Firefox Developer Edition (tg) | no-fix |
| Windows apps | Firefox Developer Edition (th) | no-fix |
| Windows apps | Firefox Developer Edition (tl) | no-fix |
| Windows apps | Firefox Developer Edition (tr) | no-fix |
| Windows apps | Firefox Developer Edition (trs) | no-fix |
| Windows apps | Firefox Developer Edition (uk) | no-fix |
| Windows apps | Firefox Developer Edition (ur) | no-fix |
| Windows apps | Firefox Developer Edition (uz) | no-fix |
| Windows apps | Firefox Developer Edition (vi) | no-fix |
| Windows apps | Firefox Developer Edition (xh) | no-fix |
| Windows apps | Firefox Developer Edition (zh-CN) | no-fix |
| Windows apps | Firefox Developer Edition (zh-TW) | no-fix |
| Windows apps | Mozilla Firefox ESR (ach) | no-fix |
| Windows apps | Mozilla Firefox ESR (af) | no-fix |
| Windows apps | Mozilla Firefox ESR (an) | no-fix |
| Windows apps | Mozilla Firefox ESR (ar) | no-fix |
| Windows apps | Mozilla Firefox ESR (ast) | no-fix |
| Windows apps | Mozilla Firefox ESR (az) | no-fix |
| Windows apps | Mozilla Firefox ESR (be) | no-fix |
| Windows apps | Mozilla Firefox ESR (bg) | no-fix |
| Windows apps | Mozilla Firefox ESR (bn) | no-fix |
| Windows apps | Mozilla Firefox ESR (br) | no-fix |
| Windows apps | Mozilla Firefox ESR (bs) | no-fix |
| Windows apps | Mozilla Firefox ESR (ca) | no-fix |
| Windows apps | Mozilla Firefox ESR (ca-valencia) | no-fix |
| Windows apps | Mozilla Firefox ESR (cak) | no-fix |
| Windows apps | Mozilla Firefox ESR (cs) | no-fix |
| Windows apps | Mozilla Firefox ESR (cy) | no-fix |
| Windows apps | Mozilla Firefox ESR (da) | no-fix |
| Windows apps | Mozilla Firefox ESR (de) | no-fix |
| Windows apps | Mozilla Firefox ESR (dsb) | no-fix |
| Windows apps | Mozilla Firefox ESR (el) | no-fix |
| Windows apps | Mozilla Firefox ESR (en-CA) | no-fix |
| Windows apps | Mozilla Firefox ESR (en-GB) | no-fix |
| Windows apps | Mozilla Firefox ESR (en-US) | no-fix |
| Windows apps | Mozilla Firefox ESR (eo) | no-fix |
| Windows apps | Mozilla Firefox ESR (es-AR) | no-fix |
| Windows apps | Mozilla Firefox ESR (es-CL) | no-fix |
| Windows apps | Mozilla Firefox ESR (es-ES) | no-fix |
| Windows apps | Mozilla Firefox ESR (es-MX) | no-fix |
| Windows apps | Mozilla Firefox ESR (et) | no-fix |
| Windows apps | Mozilla Firefox ESR (eu) | no-fix |
| Windows apps | Mozilla Firefox ESR (fa) | no-fix |
| Windows apps | Mozilla Firefox ESR (ff) | no-fix |
| Windows apps | Mozilla Firefox ESR (fi) | no-fix |
| Windows apps | Mozilla Firefox ESR (fr) | no-fix |
| Windows apps | Mozilla Firefox ESR (fur) | no-fix |
| Windows apps | Mozilla Firefox ESR (fy-NL) | no-fix |
| Windows apps | Mozilla Firefox ESR (ga-IE) | no-fix |
| Windows apps | Mozilla Firefox ESR (gd) | no-fix |
| Windows apps | Mozilla Firefox ESR (gl) | no-fix |
| Windows apps | Mozilla Firefox ESR (gn) | no-fix |
| Windows apps | Mozilla Firefox ESR (gu-IN) | no-fix |
| Windows apps | Mozilla Firefox ESR (he) | no-fix |
| Windows apps | Mozilla Firefox ESR (hi-IN) | no-fix |
| Windows apps | Mozilla Firefox ESR (hr) | no-fix |
| Windows apps | Mozilla Firefox ESR (hsb) | no-fix |
| Windows apps | Mozilla Firefox ESR (hu) | no-fix |
| Windows apps | Mozilla Firefox ESR (hy-AM) | no-fix |
| Windows apps | Mozilla Firefox ESR (ia) | no-fix |
| Windows apps | Mozilla Firefox ESR (id) | no-fix |
| Windows apps | Mozilla Firefox ESR (is) | no-fix |
| Windows apps | Mozilla Firefox ESR (it) | no-fix |
| Windows apps | Mozilla Firefox ESR (ja) | no-fix |
| Windows apps | Mozilla Firefox ESR (ka) | no-fix |
| Windows apps | Mozilla Firefox ESR (kab) | no-fix |
| Windows apps | Mozilla Firefox ESR (kk) | no-fix |
| Windows apps | Mozilla Firefox ESR (km) | no-fix |
| Windows apps | Mozilla Firefox ESR (kn) | no-fix |
| Windows apps | Mozilla Firefox ESR (ko) | no-fix |
| Windows apps | Mozilla Firefox ESR (lij) | no-fix |
| Windows apps | Mozilla Firefox ESR (lt) | no-fix |
| Windows apps | Mozilla Firefox ESR (lv) | no-fix |
| Windows apps | Mozilla Firefox ESR (mk) | no-fix |
| Windows apps | Mozilla Firefox ESR (mr) | no-fix |
| Windows apps | Mozilla Firefox ESR (ms) | no-fix |
| Windows apps | Mozilla Firefox ESR (my) | no-fix |
| Windows apps | Mozilla Firefox ESR (nb-NO) | no-fix |
| Windows apps | Mozilla Firefox ESR (ne-NP) | no-fix |
| Windows apps | Mozilla Firefox ESR (nl) | no-fix |
| Windows apps | Mozilla Firefox ESR (nn-NO) | no-fix |
| Windows apps | Mozilla Firefox ESR (oc) | no-fix |
| Windows apps | Mozilla Firefox ESR (pa-IN) | no-fix |
| Windows apps | Mozilla Firefox ESR (pl) | no-fix |
| Windows apps | Mozilla Firefox ESR (pt-BR) | no-fix |
| Windows apps | Mozilla Firefox ESR (pt-PT) | no-fix |
| Windows apps | Mozilla Firefox ESR (rm) | no-fix |
| Windows apps | Mozilla Firefox ESR (ro) | no-fix |
| Windows apps | Mozilla Firefox ESR (ru) | no-fix |
| Windows apps | Mozilla Firefox ESR (sat) | no-fix |
| Windows apps | Mozilla Firefox ESR (sc) | no-fix |
| Windows apps | Mozilla Firefox ESR (sco) | no-fix |
| Windows apps | Mozilla Firefox ESR (si) | no-fix |
| Windows apps | Mozilla Firefox ESR (sk) | no-fix |
| Windows apps | Mozilla Firefox ESR (skr) | no-fix |
| Windows apps | Mozilla Firefox ESR (sl) | no-fix |
| Windows apps | Mozilla Firefox ESR (son) | no-fix |
| Windows apps | Mozilla Firefox ESR (sq) | no-fix |
| Windows apps | Mozilla Firefox ESR (sr) | no-fix |
| Windows apps | Mozilla Firefox ESR (sv-SE) | no-fix |
| Windows apps | Mozilla Firefox ESR (szl) | no-fix |
| Windows apps | Mozilla Firefox ESR (ta) | no-fix |
| Windows apps | Mozilla Firefox ESR (te) | no-fix |
| Windows apps | Mozilla Firefox ESR (tg) | no-fix |
| Windows apps | Mozilla Firefox ESR (th) | no-fix |
| Windows apps | Mozilla Firefox ESR (tl) | no-fix |
| Windows apps | Mozilla Firefox ESR (tr) | no-fix |
| Windows apps | Mozilla Firefox ESR (trs) | no-fix |
| Windows apps | Mozilla Firefox ESR (uk) | no-fix |
| Windows apps | Mozilla Firefox ESR (ur) | no-fix |
| Windows apps | Mozilla Firefox ESR (uz) | no-fix |
| Windows apps | Mozilla Firefox ESR (vi) | no-fix |

---

Data as of 2026-11-08T00:53:09Z 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

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.