3 articles
Mozilla released Firefox 157.0.1 on October 6, 2026 with MFSA 2026-104 (CVE-2026-106016, mitigation bypass in File Handling) plus a few everyday bug fixes. Update, relaunch, confirm about:support.
Mozilla released Firefox 157.0 on September 29, 2026 with a large security advisory (76 CVEs, many High) plus Nova design themes, an encryption-key-recording warning, and Suggest expansion. Update, relaunch, confirm about:support.
Mozilla released Firefox 156.0 on September 15, 2026 with a faster PDF viewer, better large JPEG handling, a macOS launch-at-startup setting, Suggest in FR/DE/IT, and security fixes. How to update and check about:support.
