Part of your trouble there is that Google is absolute dog shit these days. It used to be like magic; simple search terms would find you exactly what you were looking for in the first handful of results. Now you’re lucky to find it on the second page.
Except Frenchmen and Africans also fought and died for this country.
I know you’re probably being facetious… but the PS/2 port is what’s shown in the OP image.
that said the Playstation 2 had USB ports, you could just plug a regular keyboard into it
Very few things refuse to work on Firefox mobile. The one exception I’ve run across is trying to log into Google, which insists that I should use a ‘compatible’ browser. Like Chrome.
If I switch what user agent Firefox is reporting so that it LOOKS like I’m using Chrome, it works perfectly, surprise, surprise. I hate Google.
Don’t forget the whack-a-mole of finding which ‘features’ got turned back on with the critical updates.