Hello. I like to end my text conversations with this cute little fish: <{~~< But it's quite difficult to type on a desktop, so I made a shortcut to it in my mac OS, by typing pf. It works everywhere on my machine but on firefox, which is my preferred browser for chatting, so it's the only time I really need to use it. It's a serious buzzkil, especially since it SHOULD WORK, but doesn't. Can anyone help? I'm on a brand new machine, with a brand new (June 29 2020) download of Firefox with the french canadian language pack installed (it didn't work before I put the language pack on either).

Thanks in advance.