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Was October 27, 2026 a Firefox update?

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YES

Yes — Firefox 159 is scheduled to ship today, October 27, at 13:00 UTC with a 25% rollout.

Why
  • Firefox 159 release day: Tuesday, October 27, 2026
  • Ships 13:00 UTC (6 AM Pacific), initial 25% rollout
  • Also ESR 153.6.0 and 115.44.0; Firefox 160 beta cycle underway

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