I think webmidi is only implemented in Chrome :(

I don't think this is true anymore. This website used to give a disclaimer to firefox users and does not anymore :

https://pianojacq.com/

This is the website I like to use. Will give pianoboi a try though.

That site says it's still Chrome only. On Firefox I get this: (maybe it's mobile Firefox)

> If you are reading this it means that your browser does not support the WebMIDI extension.

> This is a real pity, but with some luck Google Chrome will work on your system.

> If you already have chrome please start up chrome and revisit the website using that browser, otherwise you will have to install it.

> For FireFox this has been an open issue for Eight Years. See: this bugzilla entry.

> That's annoying because FireFox is normally my daily driver but eight years is enough to have to wait for a feature like that.

> So, I'm really sorry, but please switch to Chrome for this project, until Mozilla gets its act together, assuming it ever will.

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There's really no such thing as web standards anymore. Google just does whatever it wants and sometimes the other browsers work, and sometimes not...

It's the disclaimer I was talking about

Yes it's because you're on mobile Firefox

WebMIDI isn’t implemented in Safari (supposedly for [security concerns](https://news.ycombinator.com/item?id=23676109)). Only options I know of for iOS are Scrub Web Browser and WebMIDI from the App Store