CVE-2025-1018
Fullscreen notification is not displayed when fullscreen is re-requested
CVE-2025-1018 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
5.3
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0042
36th percentile
The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential 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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