Oops, yes, I need to fix that Firefox issue. However, that is an issue with the demo site only - not the library itself.
Emoji Button is a very generic library - it doesn't dictate how you show it. The text boxes are just an example. You can call showPicker() when a button is clicked, as in the demo, or you can also call it when the text box is focused, as you suggested.
Thanks for taking a look!
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