New Windows 11 shortcut for en/em dash not working in Firefox/Thunderbird?

[NoLlama]

There's a new feature in the recent 25H2 Windows 11 update: you can now type an en dash (–) / em dash (—) using Winkey + hyphen(-) / Winkey + Shift + hyphen(-) keyboard shortcuts respectively.

This works in just about every application I tried it, except for Mozilla Firefox and Thunderbird. I tried this on two different PCs, one at work and one at home. Can someone confirm this is the case?

Is Firefox somehow catching this system-wide shortcut? Can this be fixed?

[siffemcon]

Verified - I'll file a bug.

Got a bug almost filed and decided to check FF Nightly and Beta. It works on them, so it should work on FF release within a few weeks. It doesn't work on TB Beta though, so it may be more than a few weeks for TB.

[michaelfriendly]

I can confirm seeing similar reports where the new Windows 11 en dash/em dash shortcuts work in many applications but not consistently in Firefox or Thunderbird. It does seem possible that Mozilla apps are handling keyboard input differently and not yet fully supporting these newer system-level shortcuts. Hopefully this gets addressed in a future update. In the meantime, discussions around keyboard compatibility and text-input features on platforms like bili often highlight how different apps react to new OS shortcuts, making this an interesting issue to track.

[siffemcon]

It is working now on FF and TB.

a - b

a – b

a — b

[Jonas-10]

Keyboard shortcut issues may seem minor, but they can significantly affect productivity for users who rely on them daily. Reporting and discussing these problems helps improve browser compatibility and accessibility for everyone. Likewise, understanding features such as Snapchat Orbits gives users a clearer view of how interactions and friendships are represented within the platform.