Meta modifier for keyboard events doesn't seem to be working in firefox

[emil-nasso]

As the title is stating, I can't get the meta modifier to work for keyboard events in firefox. I'm running this in linux.

An example: https://jsfiddle.net/64gofxap/

If I click the resulting website and press meta (windows-key, meta, super, whatever you wanna call it) and the k-key at the same time, the counter is increased, when I use chrome. When I use firefox, nothing happens.

Has anyone else experienced this problem?

[mynona]

Doesn't work in Safari 18.3 neither.

[ekwoka]

Have you verified the event is firing at all?

[mynona]

yes, you can also check the firework fiddle from emil-nasso above

[ekwoka]

I tested it, and when the meta key is held, there is no keyup being triggered at all.

If you use keydown it will work.

[mynona]

Thank you. This workaround works.