CVE-2026-16397
Clickjacking issue in the WebExtensions component in Firefox for Android
CVE-2026-16397 is fixed in 210 products on 3 platforms, first by Mozilla Firefox 153.0, released July 15, 2026. 100 other affected products have no fix yet. It is not reported as exploited. Patch Radar priority: Routine.
RoutineFixed on 3 platforms
CVSS
6.5
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0030
22nd percentile
Clickjacking issue in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 153.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Firefox Developer Edition (en-US) | 156.0 | Firefox Developer Edition (en-US) 156.0 | Sep 2, 2026 |
| Mozilla Firefox (ach) | 153.0 | Mozilla Firefox (ach) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (af) | 153.0 | Mozilla Firefox (af) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (an) | 153.0 | Mozilla Firefox (an) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ar) | 153.0 | Mozilla Firefox (ar) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ast) | 153.0 | Mozilla Firefox (ast) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (az) | 153.0 | Mozilla Firefox (az) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (be) | 153.0 | Mozilla Firefox (be) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (bg) | 153.0 | Mozilla Firefox (bg) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (bn) | 153.0 | Mozilla Firefox (bn) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (br) | 153.0 | Mozilla Firefox (br) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (bs) | 153.0 | Mozilla Firefox (bs) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ca) | 153.0 | Mozilla Firefox (ca) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ca-valencia) | 153.0 | Mozilla Firefox (ca-valencia) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (cak) | 153.0 | Mozilla Firefox (cak) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (cs) | 153.0 | Mozilla Firefox (cs) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (cy) | 153.0 | Mozilla Firefox (cy) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (da) | 153.0 | Mozilla Firefox (da) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (de) | 153.0 | Mozilla Firefox (de) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (dsb) | 153.0 | Mozilla Firefox (dsb) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (el) | 153.0 | Mozilla Firefox (el) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (en-CA) | 153.0 | Mozilla Firefox (en-CA) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (en-GB) | 153.0 | Mozilla Firefox (en-GB) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (en-US) | 153.0 | Mozilla Firefox (en-US) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (eo) | 153.0 | Mozilla Firefox (eo) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (es-AR) | 153.0 | Mozilla Firefox (es-AR) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (es-CL) | 153.0 | Mozilla Firefox (es-CL) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (es-ES) | 153.0 | Mozilla Firefox (es-ES) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (es-MX) | 153.0 | Mozilla Firefox (es-MX) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (et) | 153.0 | Mozilla Firefox (et) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (eu) | 153.0 | Mozilla Firefox (eu) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (fa) | 153.0 | Mozilla Firefox (fa) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ff) | 153.0 | Mozilla Firefox (ff) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (fi) | 153.0 | Mozilla Firefox (fi) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (fr) | 153.0 | Mozilla Firefox (fr) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (fur) | 153.0 | Mozilla Firefox (fur) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (fy-NL) | 153.0 | Mozilla Firefox (fy-NL) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ga-IE) | 153.0 | Mozilla Firefox (ga-IE) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (gd) | 153.0 | Mozilla Firefox (gd) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (gl) | 153.0 | Mozilla Firefox (gl) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (gn) | 153.0 | Mozilla Firefox (gn) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (gu-IN) | 153.0 | Mozilla Firefox (gu-IN) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (he) | 153.0 | Mozilla Firefox (he) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (hi-IN) | 153.0 | Mozilla Firefox (hi-IN) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (hr) | 153.0 | Mozilla Firefox (hr) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (hsb) | 153.0 | Mozilla Firefox (hsb) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (hu) | 153.0 | Mozilla Firefox (hu) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (hy-AM) | 153.0 | Mozilla Firefox (hy-AM) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ia) | 153.0 | Mozilla Firefox (ia) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (id) | 153.0 | Mozilla Firefox (id) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (is) | 153.0 | Mozilla Firefox (is) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (it) | 153.0 | Mozilla Firefox (it) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ja) | 153.0 | Mozilla Firefox (ja) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ka) | 153.0 | Mozilla Firefox (ka) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (kab) | 153.0 | Mozilla Firefox (kab) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (kk) | 153.0 | Mozilla Firefox (kk) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (km) | 153.0 | Mozilla Firefox (km) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (kn) | 153.0 | Mozilla Firefox (kn) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ko) | 153.0 | Mozilla Firefox (ko) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (lij) | 153.0 | Mozilla Firefox (lij) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (lt) | 153.0 | Mozilla Firefox (lt) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (lv) | 153.0 | Mozilla Firefox (lv) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (mk) | 153.0 | Mozilla Firefox (mk) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (mr) | 153.0 | Mozilla Firefox (mr) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ms) | 153.0 | Mozilla Firefox (ms) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (my) | 153.0 | Mozilla Firefox (my) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (nb-NO) | 153.0 | Mozilla Firefox (nb-NO) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ne-NP) | 153.0 | Mozilla Firefox (ne-NP) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (nl) | 153.0 | Mozilla Firefox (nl) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (nn-NO) | 153.0 | Mozilla Firefox (nn-NO) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (oc) | 153.0 | Mozilla Firefox (oc) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (pa-IN) | 153.0 | Mozilla Firefox (pa-IN) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (pl) | 153.0 | Mozilla Firefox (pl) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (pt-BR) | 153.0 | Mozilla Firefox (pt-BR) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (pt-PT) | 153.0 | Mozilla Firefox (pt-PT) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (rm) | 153.0 | Mozilla Firefox (rm) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ro) | 153.0 | Mozilla Firefox (ro) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ru) | 153.0 | Mozilla Firefox (ru) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (sc) | 153.0 | Mozilla Firefox (sc) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (sco) | 153.0 | Mozilla Firefox (sco) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (si) | 153.0 | Mozilla Firefox (si) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (sk) | 153.0 | Mozilla Firefox (sk) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (sl) | 153.0 | Mozilla Firefox (sl) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (son) | 153.0 | Mozilla Firefox (son) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (sq) | 153.0 | Mozilla Firefox (sq) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (sr) | 153.0 | Mozilla Firefox (sr) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (sv-SE) | 153.0 | Mozilla Firefox (sv-SE) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (szl) | 153.0 | Mozilla Firefox (szl) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ta) | 153.0 | Mozilla Firefox (ta) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (te) | 153.0 | Mozilla Firefox (te) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (tg) | 153.0 | Mozilla Firefox (tg) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (th) | 153.0 | Mozilla Firefox (th) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (tl) | 153.0 | Mozilla Firefox (tl) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (tr) | 153.0 | Mozilla Firefox (tr) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (trs) | 153.0 | Mozilla Firefox (trs) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (uk) | 153.0 | Mozilla Firefox (uk) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (ur) | 153.0 | Mozilla Firefox (ur) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (uz) | 153.0 | Mozilla Firefox (uz) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (vi) | 153.0 | Mozilla Firefox (vi) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (xh) | 153.0 | Mozilla Firefox (xh) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (zh-CN) | 153.0 | Mozilla Firefox (zh-CN) 153.0 | Jul 21, 2026 |
| Mozilla Firefox (zh-TW) | 153.0 | Mozilla Firefox (zh-TW) 153.0 | Jul 21, 2026 |
| Mozilla Firefox ESR (ach) | 153.0.0 | Mozilla Firefox ESR (ach) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (af) | 153.0.0 | Mozilla Firefox ESR (af) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (an) | 153.0.0 | Mozilla Firefox ESR (an) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ar) | 153.0.0 | Mozilla Firefox ESR (ar) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ast) | 153.0.0 | Mozilla Firefox ESR (ast) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (az) | 153.0.0 | Mozilla Firefox ESR (az) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (be) | 153.0.0 | Mozilla Firefox ESR (be) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (bg) | 153.0.0 | Mozilla Firefox ESR (bg) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (bn) | 153.0.0 | Mozilla Firefox ESR (bn) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (br) | 153.0.0 | Mozilla Firefox ESR (br) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (bs) | 153.0.0 | Mozilla Firefox ESR (bs) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ca) | 153.0.0 | Mozilla Firefox ESR (ca) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ca-valencia) | 153.0.0 | Mozilla Firefox ESR (ca-valencia) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (cak) | 153.0.0 | Mozilla Firefox ESR (cak) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (cs) | 153.0.0 | Mozilla Firefox ESR (cs) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (cy) | 153.0.0 | Mozilla Firefox ESR (cy) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (da) | 153.0.0 | Mozilla Firefox ESR (da) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (de) | 153.0.0 | Mozilla Firefox ESR (de) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (dsb) | 153.0.0 | Mozilla Firefox ESR (dsb) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (el) | 153.0.0 | Mozilla Firefox ESR (el) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (en-CA) | 153.0.0 | Mozilla Firefox ESR (en-CA) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (en-GB) | 153.0.0 | Mozilla Firefox ESR (en-GB) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (en-US) | 153.0.0 | Mozilla Firefox ESR (en-US) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (eo) | 153.0.0 | Mozilla Firefox ESR (eo) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (es-AR) | 153.0.0 | Mozilla Firefox ESR (es-AR) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (es-CL) | 153.0.0 | Mozilla Firefox ESR (es-CL) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (es-ES) | 153.0.0 | Mozilla Firefox ESR (es-ES) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (es-MX) | 153.0.0 | Mozilla Firefox ESR (es-MX) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (et) | 153.0.0 | Mozilla Firefox ESR (et) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (eu) | 153.0.0 | Mozilla Firefox ESR (eu) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fa) | 153.0.0 | Mozilla Firefox ESR (fa) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ff) | 153.0.0 | Mozilla Firefox ESR (ff) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fi) | 153.0.0 | Mozilla Firefox ESR (fi) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fr) | 153.0.0 | Mozilla Firefox ESR (fr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fur) | 153.0.0 | Mozilla Firefox ESR (fur) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fy-NL) | 153.0.0 | Mozilla Firefox ESR (fy-NL) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ga-IE) | 153.0.0 | Mozilla Firefox ESR (ga-IE) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (gd) | 153.0.0 | Mozilla Firefox ESR (gd) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (gl) | 153.0.0 | Mozilla Firefox ESR (gl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (gn) | 153.0.0 | Mozilla Firefox ESR (gn) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (gu-IN) | 153.0.0 | Mozilla Firefox ESR (gu-IN) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (he) | 153.0.0 | Mozilla Firefox ESR (he) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hi-IN) | 153.0.0 | Mozilla Firefox ESR (hi-IN) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hr) | 153.0.0 | Mozilla Firefox ESR (hr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hsb) | 153.0.0 | Mozilla Firefox ESR (hsb) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hu) | 153.0.0 | Mozilla Firefox ESR (hu) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hy-AM) | 153.0.0 | Mozilla Firefox ESR (hy-AM) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ia) | 153.0.0 | Mozilla Firefox ESR (ia) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (id) | 153.0.0 | Mozilla Firefox ESR (id) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (is) | 153.0.0 | Mozilla Firefox ESR (is) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (it) | 153.0.0 | Mozilla Firefox ESR (it) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ja) | 153.0.0 | Mozilla Firefox ESR (ja) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ka) | 153.0.0 | Mozilla Firefox ESR (ka) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (kab) | 153.0.0 | Mozilla Firefox ESR (kab) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (kk) | 153.0.0 | Mozilla Firefox ESR (kk) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (km) | 153.0.0 | Mozilla Firefox ESR (km) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (kn) | 153.0.0 | Mozilla Firefox ESR (kn) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ko) | 153.0.0 | Mozilla Firefox ESR (ko) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (lij) | 153.0.0 | Mozilla Firefox ESR (lij) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (lt) | 153.0.0 | Mozilla Firefox ESR (lt) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (lv) | 153.0.0 | Mozilla Firefox ESR (lv) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (mk) | 153.0.0 | Mozilla Firefox ESR (mk) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (mr) | 153.0.0 | Mozilla Firefox ESR (mr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ms) | 153.0.0 | Mozilla Firefox ESR (ms) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (my) | 153.0.0 | Mozilla Firefox ESR (my) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (nb-NO) | 153.0.0 | Mozilla Firefox ESR (nb-NO) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ne-NP) | 153.0.0 | Mozilla Firefox ESR (ne-NP) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (nl) | 153.0.0 | Mozilla Firefox ESR (nl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (nn-NO) | 153.0.0 | Mozilla Firefox ESR (nn-NO) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (oc) | 153.0.0 | Mozilla Firefox ESR (oc) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (pa-IN) | 153.0.0 | Mozilla Firefox ESR (pa-IN) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (pl) | 153.0.0 | Mozilla Firefox ESR (pl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (pt-BR) | 153.0.0 | Mozilla Firefox ESR (pt-BR) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (pt-PT) | 153.0.0 | Mozilla Firefox ESR (pt-PT) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (rm) | 153.0.0 | Mozilla Firefox ESR (rm) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ro) | 153.0.0 | Mozilla Firefox ESR (ro) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ru) | 153.0.0 | Mozilla Firefox ESR (ru) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sat) | 153.0.0 | Mozilla Firefox ESR (sat) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sc) | 153.0.0 | Mozilla Firefox ESR (sc) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sco) | 153.0.0 | Mozilla Firefox ESR (sco) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (si) | 153.0.0 | Mozilla Firefox ESR (si) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sk) | 153.0.0 | Mozilla Firefox ESR (sk) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sl) | 153.0.0 | Mozilla Firefox ESR (sl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (son) | 153.0.0 | Mozilla Firefox ESR (son) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sq) | 153.0.0 | Mozilla Firefox ESR (sq) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sr) | 153.0.0 | Mozilla Firefox ESR (sr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sv-SE) | 153.0.0 | Mozilla Firefox ESR (sv-SE) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (szl) | 153.0.0 | Mozilla Firefox ESR (szl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ta) | 153.0.0 | Mozilla Firefox ESR (ta) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (te) | 153.0.0 | Mozilla Firefox ESR (te) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (tg) | 153.0.0 | Mozilla Firefox ESR (tg) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (th) | 153.0.0 | Mozilla Firefox ESR (th) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (tl) | 153.0.0 | Mozilla Firefox ESR (tl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (tr) | 153.0.0 | Mozilla Firefox ESR (tr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (trs) | 153.0.0 | Mozilla Firefox ESR (trs) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (uk) | 153.0.0 | Mozilla Firefox ESR (uk) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ur) | 153.0.0 | Mozilla Firefox ESR (ur) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (uz) | 153.0.0 | Mozilla Firefox ESR (uz) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (vi) | 153.0.0 | Mozilla Firefox ESR (vi) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (xh) | 153.0.0 | Mozilla Firefox ESR (xh) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (zh-CN) | 153.0.0 | Mozilla Firefox ESR (zh-CN) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (zh-TW) | 153.0.0 | Mozilla Firefox ESR (zh-TW) 153.0.0 | Jul 20, 2026 |
| macOS | |||
| Mozilla Firefox | 153.0 | Mozilla Firefox 153.0 | Jul 15, 2026 |
| Linux | |||
| MozillaFirefox · opensuse-leap 16.0 | 153.1.0-160000.1.2 | OPENSUSE-SU-2026:21713-1 | Aug 31, 2026 |
| MozillaFirefox · sles 15.6 | 153.2.0-150400.157.5.1 | SUSE-SU-2026:4156-1 | Sep 14, 2026 |
| MozillaFirefox · sles 15.7 | 153.2.0-150400.157.5.1 | SUSE-SU-2026:4156-1 | Sep 14, 2026 |
| MozillaFirefox · sles 16.0 | 153.1.0-160000.1.1 | SUSE-SU-2026:23590-1 | Aug 31, 2026 |
| MozillaFirefox-branding-SLE · sles 15.6 | 153-150400.14.3.1 | SUSE-SU-2026:4156-1 | Sep 14, 2026 |
| MozillaFirefox-branding-SLE · sles 15.7 | 153-150400.14.3.1 | SUSE-SU-2026:4156-1 | Sep 14, 2026 |
| MozillaFirefox-branding-SLE · sles 16.0 | 153-160000.1.1 | SUSE-SU-2026:23590-1 | Aug 31, 2026 |
| mozilla-nspr · opensuse-leap 16.0 | 4.39-160000.1.1 | OPENSUSE-SU-2026:21713-1 | Aug 31, 2026 |
| mozilla-nspr · sles 15.6 | 4.39-150400.12.3.1 | SUSE-SU-2026:4156-1 | Sep 14, 2026 |
| mozilla-nspr · sles 15.7 | 4.39-150400.12.3.1 | SUSE-SU-2026:4156-1 | Sep 14, 2026 |
| mozilla-nspr · sles 16.0 | 4.39-160000.1.1 | SUSE-SU-2026:23590-1 | Aug 31, 2026 |
| mozilla-nss · opensuse-leap 16.0 | 3.125-160000.1.1 | OPENSUSE-SU-2026:21713-1 | Aug 31, 2026 |
| mozilla-nss · sles 15.6 | 3.125-150400.3.74.1 | SUSE-SU-2026:4156-1 | Sep 14, 2026 |
| mozilla-nss · sles 15.7 | 3.125-150400.3.74.1 | SUSE-SU-2026:4156-1 | Sep 14, 2026 |
| mozilla-nss · sles 16.0 | 3.125-160000.1.1 | SUSE-SU-2026:23590-1 | Aug 31, 2026 |
| rust-cbindgen · opensuse-leap 16.0 | 0.29.4+git0-160000.1.1 | OPENSUSE-SU-2026:21713-1 | Aug 31, 2026 |
| rust-cbindgen · sles 16.0 | 0.29.4+git0-160000.1.1 | SUSE-SU-2026:23590-1 | Aug 31, 2026 |
| No fix yet | |||
| Firefox Developer Edition (ach) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (af) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (an) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ar) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ast) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (az) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (be) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (bg) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (bn) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (br) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (bs) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ca) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ca-valencia) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (cak) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (cs) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (cy) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (da) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (de) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (dsb) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (el) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (en-CA) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (en-GB) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (eo) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (es-AR) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (es-CL) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (es-ES) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (es-MX) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (et) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (eu) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (fa) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ff) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (fi) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (fr) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (fur) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (fy-NL) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ga-IE) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (gd) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (gl) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (gn) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (gu-IN) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (he) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (hi-IN) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (hr) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (hsb) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (hu) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (hy-AM) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ia) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (id) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (is) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (it) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ja) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ka) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (kab) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (kk) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (km) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (kn) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ko) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (lij) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (lt) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (lv) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (mk) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (mr) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ms) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (my) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (nb-NO) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ne-NP) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (nl) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (nn-NO) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (oc) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (pa-IN) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (pl) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (pt-BR) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (pt-PT) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (rm) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ro) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ru) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (sc) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (sco) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (si) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (sk) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (sl) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (son) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (sq) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (sr) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (sv-SE) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (szl) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ta) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (te) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (tg) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (th) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (tl) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (tr) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (trs) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (uk) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (ur) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (uz) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (vi) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (xh) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (zh-CN) (Windows apps) | No fix yet | no-fix | n/a |
| Firefox Developer Edition (zh-TW) (Windows apps) | No fix yet | no-fix | n/a |
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