neowin[.]net/news/mozilla-explains-firefox-crashes-on-intel-13th-14th-gen-raptor-lake-systems/
Mozilla's engineers have been trying to figure out the problem with Firefox crashing on Intel Raptor Lake 13th & 14th gen. CPUs for about a year.
Mozilla engineers traced them down to failures in a zlib-rs compression routine where a 16-bit dist value appeared incorrect which consequently led to index out-of-bounds crashes. However, the team suspected the underlying cause involved Intel Raptor Lake CPU bugs specifically the RPL050 and RPL060 issues related to incorrect load behavior. Mozilla noted however that Intel’s newer 0x12c microcode appeared to reduce the crashes greatly.