CVE-2025-1019
Fullscreen notification not properly displayed
CVE-2025-1019 is fixed in 212 products on 2 platforms, first by Firefox Developer Edition (ach) 135.0, released January 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.
RoutineFixed on 2 platforms
CVSS
4.3
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0036
30th percentile
The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack. This vulnerability was fixed in Firefox 135 and Thunderbird 135.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Firefox Developer Edition (ach) | 135.0 | Firefox Developer Edition (ach) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (af) | 135.0 | Firefox Developer Edition (af) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (an) | 135.0 | Firefox Developer Edition (an) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ar) | 135.0 | Firefox Developer Edition (ar) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ast) | 135.0 | Firefox Developer Edition (ast) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (az) | 135.0 | Firefox Developer Edition (az) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (be) | 135.0 | Firefox Developer Edition (be) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (bg) | 135.0 | Firefox Developer Edition (bg) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (bn) | 135.0 | Firefox Developer Edition (bn) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (br) | 135.0 | Firefox Developer Edition (br) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (bs) | 135.0 | Firefox Developer Edition (bs) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ca) | 135.0 | Firefox Developer Edition (ca) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ca-valencia) | 135.0 | Firefox Developer Edition (ca-valencia) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (cak) | 135.0 | Firefox Developer Edition (cak) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (cs) | 135.0 | Firefox Developer Edition (cs) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (cy) | 135.0 | Firefox Developer Edition (cy) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (da) | 135.0 | Firefox Developer Edition (da) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (de) | 135.0 | Firefox Developer Edition (de) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (dsb) | 135.0 | Firefox Developer Edition (dsb) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (el) | 135.0 | Firefox Developer Edition (el) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (en-CA) | 135.0 | Firefox Developer Edition (en-CA) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (en-GB) | 135.0 | Firefox Developer Edition (en-GB) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (en-US) | 135.0 | Firefox Developer Edition (en-US) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (eo) | 135.0 | Firefox Developer Edition (eo) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (es-AR) | 135.0 | Firefox Developer Edition (es-AR) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (es-CL) | 135.0 | Firefox Developer Edition (es-CL) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (es-ES) | 135.0 | Firefox Developer Edition (es-ES) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (es-MX) | 135.0 | Firefox Developer Edition (es-MX) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (et) | 135.0 | Firefox Developer Edition (et) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (eu) | 135.0 | Firefox Developer Edition (eu) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (fa) | 135.0 | Firefox Developer Edition (fa) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ff) | 135.0 | Firefox Developer Edition (ff) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (fi) | 135.0 | Firefox Developer Edition (fi) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (fr) | 135.0 | Firefox Developer Edition (fr) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (fur) | 135.0 | Firefox Developer Edition (fur) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (fy-NL) | 135.0 | Firefox Developer Edition (fy-NL) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ga-IE) | 135.0 | Firefox Developer Edition (ga-IE) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (gd) | 135.0 | Firefox Developer Edition (gd) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (gl) | 135.0 | Firefox Developer Edition (gl) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (gn) | 135.0 | Firefox Developer Edition (gn) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (gu-IN) | 135.0 | Firefox Developer Edition (gu-IN) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (he) | 135.0 | Firefox Developer Edition (he) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (hi-IN) | 135.0 | Firefox Developer Edition (hi-IN) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (hr) | 135.0 | Firefox Developer Edition (hr) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (hsb) | 135.0 | Firefox Developer Edition (hsb) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (hu) | 135.0 | Firefox Developer Edition (hu) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (hy-AM) | 135.0 | Firefox Developer Edition (hy-AM) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ia) | 135.0 | Firefox Developer Edition (ia) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (id) | 135.0 | Firefox Developer Edition (id) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (is) | 135.0 | Firefox Developer Edition (is) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (it) | 135.0 | Firefox Developer Edition (it) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ja) | 135.0 | Firefox Developer Edition (ja) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ka) | 135.0 | Firefox Developer Edition (ka) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (kab) | 135.0 | Firefox Developer Edition (kab) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (kk) | 135.0 | Firefox Developer Edition (kk) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (km) | 135.0 | Firefox Developer Edition (km) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (kn) | 135.0 | Firefox Developer Edition (kn) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ko) | 135.0 | Firefox Developer Edition (ko) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (lij) | 135.0 | Firefox Developer Edition (lij) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (lt) | 135.0 | Firefox Developer Edition (lt) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (lv) | 135.0 | Firefox Developer Edition (lv) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (mk) | 135.0 | Firefox Developer Edition (mk) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (mr) | 135.0 | Firefox Developer Edition (mr) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ms) | 135.0 | Firefox Developer Edition (ms) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (my) | 135.0 | Firefox Developer Edition (my) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (nb-NO) | 135.0 | Firefox Developer Edition (nb-NO) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ne-NP) | 135.0 | Firefox Developer Edition (ne-NP) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (nl) | 135.0 | Firefox Developer Edition (nl) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (nn-NO) | 135.0 | Firefox Developer Edition (nn-NO) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (oc) | 135.0 | Firefox Developer Edition (oc) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (pa-IN) | 135.0 | Firefox Developer Edition (pa-IN) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (pl) | 135.0 | Firefox Developer Edition (pl) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (pt-BR) | 135.0 | Firefox Developer Edition (pt-BR) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (pt-PT) | 135.0 | Firefox Developer Edition (pt-PT) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (rm) | 135.0 | Firefox Developer Edition (rm) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ro) | 135.0 | Firefox Developer Edition (ro) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ru) | 135.0 | Firefox Developer Edition (ru) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (sc) | 135.0 | Firefox Developer Edition (sc) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (sco) | 135.0 | Firefox Developer Edition (sco) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (si) | 135.0 | Firefox Developer Edition (si) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (sk) | 135.0 | Firefox Developer Edition (sk) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (sl) | 135.0 | Firefox Developer Edition (sl) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (sq) | 135.0 | Firefox Developer Edition (sq) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (sr) | 135.0 | Firefox Developer Edition (sr) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (sv-SE) | 135.0 | Firefox Developer Edition (sv-SE) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (szl) | 135.0 | Firefox Developer Edition (szl) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ta) | 135.0 | Firefox Developer Edition (ta) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (te) | 135.0 | Firefox Developer Edition (te) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (tg) | 135.0 | Firefox Developer Edition (tg) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (th) | 135.0 | Firefox Developer Edition (th) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (tl) | 135.0 | Firefox Developer Edition (tl) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (tr) | 135.0 | Firefox Developer Edition (tr) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (trs) | 135.0 | Firefox Developer Edition (trs) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (uk) | 135.0 | Firefox Developer Edition (uk) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (ur) | 135.0 | Firefox Developer Edition (ur) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (uz) | 135.0 | Firefox Developer Edition (uz) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (vi) | 135.0 | Firefox Developer Edition (vi) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (xh) | 135.0 | Firefox Developer Edition (xh) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (zh-CN) | 135.0 | Firefox Developer Edition (zh-CN) 135.0 | Jan 24, 2025 |
| Firefox Developer Edition (zh-TW) | 135.0 | Firefox Developer Edition (zh-TW) 135.0 | Jan 24, 2025 |
| Mozilla Firefox (en-US) | 135.0 | Mozilla Firefox (en-US) 135.0 | Feb 6, 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 | |||
| firefox · Ubuntu 20.04 LTS (focal) | 135.0+build2-0ubuntu0.20.04.1 | firefox 135.0+build2-0ubuntu0.20.04.1 | Feb 5, 2025 |
| firefox-geckodriver · Ubuntu 20.04 LTS (focal) | 135.0+build2-0ubuntu0.20.04.1 | firefox-geckodriver 135.0+build2-0ubuntu0.20.04.1 | Feb 5, 2025 |
| firefox-mozsymbols · Ubuntu 20.04 LTS (focal) | 135.0+build2-0ubuntu0.20.04.1 | firefox-mozsymbols 135.0+build2-0ubuntu0.20.04.1 | Feb 5, 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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