Razer Basilisk V3 PRO is listed as supported by the Mac Preview software.Most functionality works correctly for customizing mouse buttons.However, remapping Mouse Button 5 to a Modifier key has no effect.Specifically, I am trying to remap Mouse Button 5 → Shift, which shows as remapped in the Razer Synapse for Mac Preview but has no effect, i.e. keys typed while holding down the remapped Mouse Button 5 are not uppercased.Also tried remapping Mouse Button 5 → Ctrl and that had no effect either.

Razer Synapse for Mac Preview modifiers issue with Razer Basilisk V3 PRO

[MONTHLY SILVER] January 2026 30,000 Silver Drawing

4 hours ago

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