A new maintenance release of Firefox, version 152.0.1, has been released to address issues that were causing crashes on systems with Intel processors based on the Raptor Lake microarchitecture. This bug was due to a problem in the CPU that was causing instructions generated for caching functions to be processed incorrectly by the JIT compiler written in C++. More information can be found here.
It is important to note that a month ago, a similar issue with Intel Raptor Lake CPUs was resolved in the release of Firefox 151.0.1. Previous problems were caused by Intel Raptor Lake processors mishandling the “mov byte ptr [rsi + rdi + 1], ch” instruction generated for zlib-rs Rust library code. The fix for this specific issue can be found here.
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