CVE-2025-6433
WebAuthn would allow a user to sign a challenge on a webpage with an invalid TLS certificate
CVE-2025-6433 is fixed in 314 products on 2 platforms, first by Firefox Developer Edition (ach) 140.0, released June 13, 2025. It is not reported as exploited. Patch Radar priority: High.
HighFixed on 2 platforms
CVSS
9.8
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0030
22nd percentile
If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge that the user would be prompted to complete. This is in violation of the WebAuthN spec which requires "a secure transport established without errors". This vulnerability was fixed in Firefox 140 and Thunderbird 140.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Firefox Developer Edition (ach) | 140.0 | Firefox Developer Edition (ach) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (af) | 140.0 | Firefox Developer Edition (af) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (an) | 140.0 | Firefox Developer Edition (an) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ar) | 140.0 | Firefox Developer Edition (ar) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ast) | 140.0 | Firefox Developer Edition (ast) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (az) | 140.0 | Firefox Developer Edition (az) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (be) | 140.0 | Firefox Developer Edition (be) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (bg) | 140.0 | Firefox Developer Edition (bg) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (bn) | 140.0 | Firefox Developer Edition (bn) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (br) | 140.0 | Firefox Developer Edition (br) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (bs) | 140.0 | Firefox Developer Edition (bs) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ca) | 140.0 | Firefox Developer Edition (ca) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ca-valencia) | 140.0 | Firefox Developer Edition (ca-valencia) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (cak) | 140.0 | Firefox Developer Edition (cak) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (cs) | 140.0 | Firefox Developer Edition (cs) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (cy) | 140.0 | Firefox Developer Edition (cy) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (da) | 140.0 | Firefox Developer Edition (da) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (de) | 140.0 | Firefox Developer Edition (de) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (dsb) | 140.0 | Firefox Developer Edition (dsb) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (el) | 140.0 | Firefox Developer Edition (el) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (en-CA) | 140.0 | Firefox Developer Edition (en-CA) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (en-GB) | 140.0 | Firefox Developer Edition (en-GB) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (en-US) | 140.0 | Firefox Developer Edition (en-US) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (eo) | 140.0 | Firefox Developer Edition (eo) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (es-AR) | 140.0 | Firefox Developer Edition (es-AR) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (es-CL) | 140.0 | Firefox Developer Edition (es-CL) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (es-ES) | 140.0 | Firefox Developer Edition (es-ES) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (es-MX) | 140.0 | Firefox Developer Edition (es-MX) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (et) | 140.0 | Firefox Developer Edition (et) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (eu) | 140.0 | Firefox Developer Edition (eu) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (fa) | 140.0 | Firefox Developer Edition (fa) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ff) | 140.0 | Firefox Developer Edition (ff) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (fi) | 140.0 | Firefox Developer Edition (fi) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (fr) | 140.0 | Firefox Developer Edition (fr) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (fur) | 140.0 | Firefox Developer Edition (fur) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (fy-NL) | 140.0 | Firefox Developer Edition (fy-NL) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ga-IE) | 140.0 | Firefox Developer Edition (ga-IE) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (gd) | 140.0 | Firefox Developer Edition (gd) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (gl) | 140.0 | Firefox Developer Edition (gl) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (gn) | 140.0 | Firefox Developer Edition (gn) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (gu-IN) | 140.0 | Firefox Developer Edition (gu-IN) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (he) | 140.0 | Firefox Developer Edition (he) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (hi-IN) | 140.0 | Firefox Developer Edition (hi-IN) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (hr) | 140.0 | Firefox Developer Edition (hr) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (hsb) | 140.0 | Firefox Developer Edition (hsb) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (hu) | 140.0 | Firefox Developer Edition (hu) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (hy-AM) | 140.0 | Firefox Developer Edition (hy-AM) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ia) | 140.0 | Firefox Developer Edition (ia) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (id) | 140.0 | Firefox Developer Edition (id) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (is) | 140.0 | Firefox Developer Edition (is) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (it) | 140.0 | Firefox Developer Edition (it) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ja) | 140.0 | Firefox Developer Edition (ja) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ka) | 140.0 | Firefox Developer Edition (ka) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (kab) | 140.0 | Firefox Developer Edition (kab) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (kk) | 140.0 | Firefox Developer Edition (kk) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (km) | 140.0 | Firefox Developer Edition (km) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (kn) | 140.0 | Firefox Developer Edition (kn) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ko) | 140.0 | Firefox Developer Edition (ko) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (lij) | 140.0 | Firefox Developer Edition (lij) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (lt) | 140.0 | Firefox Developer Edition (lt) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (lv) | 140.0 | Firefox Developer Edition (lv) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (mk) | 140.0 | Firefox Developer Edition (mk) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (mr) | 140.0 | Firefox Developer Edition (mr) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ms) | 140.0 | Firefox Developer Edition (ms) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (my) | 140.0 | Firefox Developer Edition (my) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (nb-NO) | 140.0 | Firefox Developer Edition (nb-NO) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ne-NP) | 140.0 | Firefox Developer Edition (ne-NP) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (nl) | 140.0 | Firefox Developer Edition (nl) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (nn-NO) | 140.0 | Firefox Developer Edition (nn-NO) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (oc) | 140.0 | Firefox Developer Edition (oc) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (pa-IN) | 140.0 | Firefox Developer Edition (pa-IN) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (pl) | 140.0 | Firefox Developer Edition (pl) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (pt-BR) | 140.0 | Firefox Developer Edition (pt-BR) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (pt-PT) | 140.0 | Firefox Developer Edition (pt-PT) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (rm) | 140.0 | Firefox Developer Edition (rm) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ro) | 140.0 | Firefox Developer Edition (ro) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ru) | 140.0 | Firefox Developer Edition (ru) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (sc) | 140.0 | Firefox Developer Edition (sc) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (sco) | 140.0 | Firefox Developer Edition (sco) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (si) | 140.0 | Firefox Developer Edition (si) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (sk) | 140.0 | Firefox Developer Edition (sk) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (sl) | 140.0 | Firefox Developer Edition (sl) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (son) | 140.0 | Firefox Developer Edition (son) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (sq) | 140.0 | Firefox Developer Edition (sq) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (sr) | 140.0 | Firefox Developer Edition (sr) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (sv-SE) | 140.0 | Firefox Developer Edition (sv-SE) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (szl) | 140.0 | Firefox Developer Edition (szl) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ta) | 140.0 | Firefox Developer Edition (ta) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (te) | 140.0 | Firefox Developer Edition (te) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (tg) | 140.0 | Firefox Developer Edition (tg) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (th) | 140.0 | Firefox Developer Edition (th) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (tl) | 140.0 | Firefox Developer Edition (tl) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (tr) | 140.0 | Firefox Developer Edition (tr) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (trs) | 140.0 | Firefox Developer Edition (trs) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (uk) | 140.0 | Firefox Developer Edition (uk) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (ur) | 140.0 | Firefox Developer Edition (ur) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (uz) | 140.0 | Firefox Developer Edition (uz) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (vi) | 140.0 | Firefox Developer Edition (vi) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (xh) | 140.0 | Firefox Developer Edition (xh) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (zh-CN) | 140.0 | Firefox Developer Edition (zh-CN) 140.0 | Jun 13, 2025 |
| Firefox Developer Edition (zh-TW) | 140.0 | Firefox Developer Edition (zh-TW) 140.0 | Jun 13, 2025 |
| Mozilla Firefox (ach) | 140.0 | Mozilla Firefox (ach) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (af) | 140.0 | Mozilla Firefox (af) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (an) | 140.0 | Mozilla Firefox (an) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ar) | 140.0 | Mozilla Firefox (ar) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ast) | 140.0 | Mozilla Firefox (ast) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (az) | 140.0 | Mozilla Firefox (az) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (be) | 140.0 | Mozilla Firefox (be) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (bg) | 140.0 | Mozilla Firefox (bg) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (bn) | 140.0 | Mozilla Firefox (bn) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (br) | 140.0 | Mozilla Firefox (br) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (bs) | 140.0 | Mozilla Firefox (bs) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ca) | 140.0 | Mozilla Firefox (ca) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ca-valencia) | 140.0 | Mozilla Firefox (ca-valencia) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (cak) | 140.0 | Mozilla Firefox (cak) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (cs) | 140.0 | Mozilla Firefox (cs) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (cy) | 140.0 | Mozilla Firefox (cy) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (da) | 140.0 | Mozilla Firefox (da) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (de) | 140.0 | Mozilla Firefox (de) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (dsb) | 140.0 | Mozilla Firefox (dsb) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (el) | 140.0 | Mozilla Firefox (el) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (en-CA) | 140.0 | Mozilla Firefox (en-CA) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (en-GB) | 140.0 | Mozilla Firefox (en-GB) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (en-US) | 140.0 | Mozilla Firefox (en-US) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (eo) | 140.0 | Mozilla Firefox (eo) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (es-AR) | 140.0 | Mozilla Firefox (es-AR) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (es-CL) | 140.0 | Mozilla Firefox (es-CL) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (es-ES) | 140.0 | Mozilla Firefox (es-ES) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (es-MX) | 140.0 | Mozilla Firefox (es-MX) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (et) | 140.0 | Mozilla Firefox (et) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (eu) | 140.0 | Mozilla Firefox (eu) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (fa) | 140.0 | Mozilla Firefox (fa) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ff) | 140.0 | Mozilla Firefox (ff) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (fi) | 140.0 | Mozilla Firefox (fi) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (fr) | 140.0 | Mozilla Firefox (fr) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (fur) | 140.0 | Mozilla Firefox (fur) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (fy-NL) | 140.0 | Mozilla Firefox (fy-NL) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ga-IE) | 140.0 | Mozilla Firefox (ga-IE) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (gd) | 140.0 | Mozilla Firefox (gd) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (gl) | 140.0 | Mozilla Firefox (gl) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (gn) | 140.0 | Mozilla Firefox (gn) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (gu-IN) | 140.0 | Mozilla Firefox (gu-IN) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (he) | 140.0 | Mozilla Firefox (he) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (hi-IN) | 140.0 | Mozilla Firefox (hi-IN) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (hr) | 140.0 | Mozilla Firefox (hr) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (hsb) | 140.0 | Mozilla Firefox (hsb) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (hu) | 140.0 | Mozilla Firefox (hu) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (hy-AM) | 140.0 | Mozilla Firefox (hy-AM) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ia) | 140.0 | Mozilla Firefox (ia) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (id) | 140.0 | Mozilla Firefox (id) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (is) | 140.0 | Mozilla Firefox (is) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (it) | 140.0 | Mozilla Firefox (it) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ja) | 140.0 | Mozilla Firefox (ja) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ka) | 140.0 | Mozilla Firefox (ka) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (kab) | 140.0 | Mozilla Firefox (kab) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (kk) | 140.0 | Mozilla Firefox (kk) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (km) | 140.0 | Mozilla Firefox (km) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (kn) | 140.0 | Mozilla Firefox (kn) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ko) | 140.0 | Mozilla Firefox (ko) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (lij) | 140.0 | Mozilla Firefox (lij) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (lt) | 140.0 | Mozilla Firefox (lt) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (lv) | 140.0 | Mozilla Firefox (lv) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (mk) | 140.0 | Mozilla Firefox (mk) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (mr) | 140.0 | Mozilla Firefox (mr) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ms) | 140.0 | Mozilla Firefox (ms) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (my) | 140.0 | Mozilla Firefox (my) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (nb-NO) | 140.0 | Mozilla Firefox (nb-NO) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ne-NP) | 140.0 | Mozilla Firefox (ne-NP) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (nl) | 140.0 | Mozilla Firefox (nl) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (nn-NO) | 140.0 | Mozilla Firefox (nn-NO) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (oc) | 140.0 | Mozilla Firefox (oc) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (pa-IN) | 140.0 | Mozilla Firefox (pa-IN) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (pl) | 140.0 | Mozilla Firefox (pl) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (pt-BR) | 140.0 | Mozilla Firefox (pt-BR) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (pt-PT) | 140.0 | Mozilla Firefox (pt-PT) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (rm) | 140.0 | Mozilla Firefox (rm) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ro) | 140.0 | Mozilla Firefox (ro) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ru) | 140.0 | Mozilla Firefox (ru) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (sc) | 140.0 | Mozilla Firefox (sc) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (sco) | 140.0 | Mozilla Firefox (sco) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (si) | 140.0 | Mozilla Firefox (si) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (sk) | 140.0 | Mozilla Firefox (sk) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (sl) | 140.0 | Mozilla Firefox (sl) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (son) | 140.0 | Mozilla Firefox (son) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (sq) | 140.0 | Mozilla Firefox (sq) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (sr) | 140.0 | Mozilla Firefox (sr) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (sv-SE) | 140.0 | Mozilla Firefox (sv-SE) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (szl) | 140.0 | Mozilla Firefox (szl) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ta) | 140.0 | Mozilla Firefox (ta) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (te) | 140.0 | Mozilla Firefox (te) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (tg) | 140.0 | Mozilla Firefox (tg) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (th) | 140.0 | Mozilla Firefox (th) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (tl) | 140.0 | Mozilla Firefox (tl) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (tr) | 140.0 | Mozilla Firefox (tr) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (trs) | 140.0 | Mozilla Firefox (trs) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (uk) | 140.0 | Mozilla Firefox (uk) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (ur) | 140.0 | Mozilla Firefox (ur) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (uz) | 140.0 | Mozilla Firefox (uz) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (vi) | 140.0 | Mozilla Firefox (vi) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (xh) | 140.0 | Mozilla Firefox (xh) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (zh-CN) | 140.0 | Mozilla Firefox (zh-CN) 140.0 | Jun 24, 2025 |
| Mozilla Firefox (zh-TW) | 140.0 | Mozilla Firefox (zh-TW) 140.0 | Jun 24, 2025 |
| Mozilla Firefox ESR (ach) | 140.3.0 | Mozilla Firefox ESR (ach) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (af) | 140.3.0 | Mozilla Firefox ESR (af) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (an) | 140.3.0 | Mozilla Firefox ESR (an) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ar) | 140.3.0 | Mozilla Firefox ESR (ar) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ast) | 140.3.0 | Mozilla Firefox ESR (ast) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (az) | 140.3.0 | Mozilla Firefox ESR (az) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (be) | 140.3.0 | Mozilla Firefox ESR (be) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (bg) | 140.3.0 | Mozilla Firefox ESR (bg) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (bn) | 140.3.0 | Mozilla Firefox ESR (bn) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (br) | 140.3.0 | Mozilla Firefox ESR (br) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (bs) | 140.3.0 | Mozilla Firefox ESR (bs) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ca) | 140.3.0 | Mozilla Firefox ESR (ca) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ca-valencia) | 140.3.0 | Mozilla Firefox ESR (ca-valencia) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (cak) | 140.3.0 | Mozilla Firefox ESR (cak) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (cs) | 140.3.0 | Mozilla Firefox ESR (cs) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (cy) | 140.3.0 | Mozilla Firefox ESR (cy) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (da) | 140.3.0 | Mozilla Firefox ESR (da) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (de) | 140.3.0 | Mozilla Firefox ESR (de) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (dsb) | 140.3.0 | Mozilla Firefox ESR (dsb) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (el) | 140.3.0 | Mozilla Firefox ESR (el) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (en-CA) | 140.3.0 | Mozilla Firefox ESR (en-CA) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (en-GB) | 140.3.0 | Mozilla Firefox ESR (en-GB) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (en-US) | 140.3.0 | Mozilla Firefox ESR (en-US) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (eo) | 140.3.0 | Mozilla Firefox ESR (eo) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (es-AR) | 140.3.0 | Mozilla Firefox ESR (es-AR) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (es-CL) | 140.3.0 | Mozilla Firefox ESR (es-CL) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (es-ES) | 140.3.0 | Mozilla Firefox ESR (es-ES) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (es-MX) | 140.3.0 | Mozilla Firefox ESR (es-MX) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (et) | 140.3.0 | Mozilla Firefox ESR (et) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (eu) | 140.3.0 | Mozilla Firefox ESR (eu) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (fa) | 140.3.0 | Mozilla Firefox ESR (fa) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ff) | 140.3.0 | Mozilla Firefox ESR (ff) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (fi) | 140.3.0 | Mozilla Firefox ESR (fi) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (fr) | 140.3.0 | Mozilla Firefox ESR (fr) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (fur) | 140.3.0 | Mozilla Firefox ESR (fur) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (fy-NL) | 140.3.0 | Mozilla Firefox ESR (fy-NL) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ga-IE) | 140.3.0 | Mozilla Firefox ESR (ga-IE) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (gd) | 140.3.0 | Mozilla Firefox ESR (gd) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (gl) | 140.3.0 | Mozilla Firefox ESR (gl) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (gn) | 140.3.0 | Mozilla Firefox ESR (gn) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (gu-IN) | 140.3.0 | Mozilla Firefox ESR (gu-IN) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (he) | 140.3.0 | Mozilla Firefox ESR (he) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (hi-IN) | 140.3.0 | Mozilla Firefox ESR (hi-IN) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (hr) | 140.3.0 | Mozilla Firefox ESR (hr) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (hsb) | 140.3.0 | Mozilla Firefox ESR (hsb) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (hu) | 140.3.0 | Mozilla Firefox ESR (hu) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (hy-AM) | 140.3.0 | Mozilla Firefox ESR (hy-AM) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ia) | 140.3.0 | Mozilla Firefox ESR (ia) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (id) | 140.3.0 | Mozilla Firefox ESR (id) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (is) | 140.3.0 | Mozilla Firefox ESR (is) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (it) | 140.3.0 | Mozilla Firefox ESR (it) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ja) | 140.3.0 | Mozilla Firefox ESR (ja) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ka) | 140.3.0 | Mozilla Firefox ESR (ka) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (kab) | 140.3.0 | Mozilla Firefox ESR (kab) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (kk) | 140.3.0 | Mozilla Firefox ESR (kk) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (km) | 140.3.0 | Mozilla Firefox ESR (km) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (kn) | 140.3.0 | Mozilla Firefox ESR (kn) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ko) | 140.3.0 | Mozilla Firefox ESR (ko) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (lij) | 140.3.0 | Mozilla Firefox ESR (lij) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (lt) | 140.3.0 | Mozilla Firefox ESR (lt) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (lv) | 140.3.0 | Mozilla Firefox ESR (lv) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (mk) | 140.3.0 | Mozilla Firefox ESR (mk) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (mr) | 140.3.0 | Mozilla Firefox ESR (mr) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ms) | 140.3.0 | Mozilla Firefox ESR (ms) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (my) | 140.3.0 | Mozilla Firefox ESR (my) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (nb-NO) | 140.3.0 | Mozilla Firefox ESR (nb-NO) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ne-NP) | 140.3.0 | Mozilla Firefox ESR (ne-NP) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (nl) | 140.3.0 | Mozilla Firefox ESR (nl) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (nn-NO) | 140.3.0 | Mozilla Firefox ESR (nn-NO) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (oc) | 140.3.0 | Mozilla Firefox ESR (oc) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (pa-IN) | 140.3.0 | Mozilla Firefox ESR (pa-IN) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (pl) | 140.3.0 | Mozilla Firefox ESR (pl) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (pt-BR) | 140.3.0 | Mozilla Firefox ESR (pt-BR) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (pt-PT) | 140.3.0 | Mozilla Firefox ESR (pt-PT) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (rm) | 140.3.0 | Mozilla Firefox ESR (rm) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ro) | 140.3.0 | Mozilla Firefox ESR (ro) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ru) | 140.3.0 | Mozilla Firefox ESR (ru) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (sat) | 140.13.0 | Mozilla Firefox ESR (sat) 140.13.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sc) | 140.3.0 | Mozilla Firefox ESR (sc) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (sco) | 140.3.0 | Mozilla Firefox ESR (sco) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (si) | 140.3.0 | Mozilla Firefox ESR (si) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (sk) | 140.3.0 | Mozilla Firefox ESR (sk) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (sl) | 140.3.0 | Mozilla Firefox ESR (sl) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (son) | 140.3.0 | Mozilla Firefox ESR (son) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (sq) | 140.3.0 | Mozilla Firefox ESR (sq) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (sr) | 140.3.0 | Mozilla Firefox ESR (sr) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (sv-SE) | 140.3.0 | Mozilla Firefox ESR (sv-SE) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (szl) | 140.3.0 | Mozilla Firefox ESR (szl) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ta) | 140.3.0 | Mozilla Firefox ESR (ta) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (te) | 140.3.0 | Mozilla Firefox ESR (te) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (tg) | 140.3.0 | Mozilla Firefox ESR (tg) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (th) | 140.3.0 | Mozilla Firefox ESR (th) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (tl) | 140.3.0 | Mozilla Firefox ESR (tl) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (tr) | 140.3.0 | Mozilla Firefox ESR (tr) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (trs) | 140.3.0 | Mozilla Firefox ESR (trs) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (uk) | 140.3.0 | Mozilla Firefox ESR (uk) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (ur) | 140.3.0 | Mozilla Firefox ESR (ur) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (uz) | 140.3.0 | Mozilla Firefox ESR (uz) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (vi) | 140.3.0 | Mozilla Firefox ESR (vi) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (xh) | 140.3.0 | Mozilla Firefox ESR (xh) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (zh-CN) | 140.3.0 | Mozilla Firefox ESR (zh-CN) 140.3.0 | Sep 16, 2025 |
| Mozilla Firefox ESR (zh-TW) | 140.3.0 | Mozilla Firefox ESR (zh-TW) 140.3.0 | Sep 16, 2025 |
| Linux | |||
| MozillaFirefox · opensuse-leap 15.6 | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 | Jul 25, 2025 |
| MozillaFirefox · sles 15.6 | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 | Jul 25, 2025 |
| MozillaFirefox · sles 15.7 | 140.1.0-150200.152.193.1 | SUSE-SU-2025:02529-1 | Jul 25, 2025 |
| MozillaFirefox-branding-SLE · opensuse-leap 15.6 | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 | Jul 25, 2025 |
| MozillaFirefox-branding-SLE · sles 15.6 | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 | Jul 25, 2025 |
| MozillaFirefox-branding-SLE · sles 15.7 | 140-150200.9.21.1 | SUSE-SU-2025:02529-1 | Jul 25, 2025 |
| MozillaThunderbird · opensuse-leap 15.6 | 140.1.0-150200.8.230.1 | SUSE-SU-2025:02546-1 | Jul 30, 2025 |
| MozillaThunderbird · sles 15.6 | 140.1.0-150200.8.230.1 | SUSE-SU-2025:02546-1 | Jul 30, 2025 |
| MozillaThunderbird · sles 15.7 | 140.1.0-150200.8.230.1 | SUSE-SU-2025:02546-1 | Jul 30, 2025 |
| pipewire · sles 15.6 | 0.3.6-150200.3.11.1 | SUSE-SU-2025:02529-1 | Jul 25, 2025 |
| pipewire · sles 15.7 | 0.3.6-150200.3.11.1 | SUSE-SU-2025:02529-1 | Jul 25, 2025 |
| thunderbird · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | thunderbird 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| thunderbird-gnome-support · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | thunderbird-gnome-support 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| thunderbird-mozsymbols · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | thunderbird-mozsymbols 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| xul-ext-calendar-timezones · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | xul-ext-calendar-timezones 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| xul-ext-gdata-provider · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | xul-ext-gdata-provider 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| xul-ext-lightning · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | xul-ext-lightning 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
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