Firefox security bug fixes by month

All sources · All severities

Firefox security bug fixes per month, January 2025 through April 2026
MonthFixes
Jan 202521
Feb 202520
Mar 202526
Apr 202531
May 202517
Jun 202521
Jul 202522
Aug 202517
Sep 202518
Oct 202526
Nov 202519
Dec 202520
Jan 202625
Feb 202661
Mar 202676
Apr 2026423