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Toggle Fn

Toggle the "Use all F1, F2, etc. keys as standard function keys" option in macOS System Preferences.

1,902 Installs

Install Extension

Overview

Toggle Fn

Toggle the "Use all F1, F2, etc. keys as standard function keys" option in macOS System Preferences.

Tested with:

MacOS Tahoe, 26.3, February 2026
MacOS Sequoia, 15.4.1, April 2025
MacOS Sonoma, 14.2.1, January 2024
MacOS Ventura, 13.2, January 2023
MacOS Monterey, 12.6.2, December 2022
MacOS Big Sur, 11.4, June 2021

Credits

Original code base provided by @MrSimonC.
Code optimization by @pernielsentikaer.
Special thanks to @jcelaya775 for the fix on macOS Tahoe.
Thanks to @shivraj-roy for the performance boost tip on macOS Tahoe.

Commands1

Toggle Fn

Toggle Mac Function Keys

Versions3

1.0.2 - February 25, 2026

Added

Support for macOS Tahoe (26.x)

Fixed

Critical bug: Corrected application name from "System Settings" to "System Preferences" in macOS < 13.0 branch, preventing crashes on Big Sur and Monterey

Improved

Significant performance boost on macOS 26+ by using activateSettings command instead of UI scripting
Settings now take effect immediately without UI automation delays
Better user feedback with specific HUD messages for Standard F-Keys vs Media Controls

Changed

Optimized AppleScript logic to use direct defaults commands on newer macOS versions

1.0.1 - October 13, 2025

Fixed

Resolved an issue where the extension would not run

1.0.0 - August 25, 2024

Added

Initial version code

Contributors2

pernielsentikaer

Compatibility

macOS

Categories

Productivity System

Source code

Report Bug Request Feature

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