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Fixed the dot that marks a tab needing attention being hard to see with some themes, depending on the system accent color. (Bug 2086347)

Fixed a command prompt window briefly appearing on Windows when Firefox restarts to apply an update. (Bug 2081809)

Fixed passkey sign-in failing on websites that share passkeys across related sites, such as Facebook and Instagram. (Bug 2085450)

Fixed crashes on Windows that could occur with some antivirus or other security software installed, in some cases also leaving WebGL disabled. (Bug 2083648)

Fixed red and blue colors appearing swapped on some websites that use WebGL on Linux, including video call background effects. (Bug 2087301)

Updated time zone data to reflect Cuba's decision not to end daylight saving time on November 1, 2026. (Bug 2086609)

Fixed text in some Settings descriptions, such as security warnings, breaking in the middle of words. (Bug 2086282)

Security fix.