After a year, Firefox finally stops crashing on Intel's Raptor Lake CPUs — Mozilla releases new version patch critical flaw on Intel 13th-gen and 14th-gen CPUs

Mozilla released Firefox 151.01 to fix long-running crashes on Intel Raptor Lake desktop systems.

The issue was traced to instability in certain Intel 13th- and 14th-gen CPUs, not Firefox itself.

Mozilla spent about a year investigating the problem before linking it to faulty CPU behavior and microcode-related instability.

The fix addresses a major browser crash issue for affected users and shows how hardware defects can look like software bugs.