Firefox 149 Released With Patch for 37 Vulnerabilities that Enables Remote Attacks

Mozilla released Firefox 149 on March 24, 2026, delivering one of the largest security advisories in the browser’s recent history, addressing 37 vulnerabilities spanning memory corruption, sandbox escapes, use-after-free flaws, and remote code execution risks across multiple browser components. Published under advisory MFSA 2026-20, the security update carries an overall “high” impact rating from Mozilla. […]

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