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Update

Fixed an issue that prevented some extensions from updating via the Add-ons Manager.

Version 143.0.3, first offered to Release channel users on September 30, 2025

Fixed

  • Adjusted the timing of the new drag-to-pin interaction cue for better reliability. (Bug 1989344)
  • Fixed an issue that prevented some extensions from updating via the Add-ons Manager. (Bug 1984724)
  • Fixed a regression that prevented Firefox View sections from collapsing/expanding as expected. (Bug 1989200)
  • Addressed a WebExtensions storage issue that could cause Firefox to crash on startup with certain extensions installed. (Bug 1989840)
  • Fixed an issue where opening an add-on's "Extension settings" from the post-install prompt could break the Customize tab and some keyboard shortcuts until restart. (Bug 1983869)
  • Reduced long delays when loading certain websites while connected to networks that block UDP connections. (Bug 1980812)
  • Various stability and security fixes.
Version: 143.0.3 Link
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