Mozilla Addresses 423 Firefox Security Bugs in April with Claude Mythos Preview Access

Mozilla has resolved 423 security vulnerabilities in Firefox during April, following its access to the Claude Mythos Preview. According to NS3.AI, this achievement aligns with the number of fixes made over the previous 14 months, but accomplished within a single month. Mozilla reported that 271 of these bugs were addressed in Firefox 150, with 180 classified as high security risks. Among the disclosed issues was a 20-year-old XSLT reentrancy flaw.