[josephg]

Does it run Firefox? I’d love to see a browser in a browser, just to experience mediocrity in all its awful glory.

Networking would be tricky, but you could encapsulate TCP over a custom websocket tunnel.

[exikyut]

No, but it does run NetSurf: http://www.boxedwine.org/app/netsurf/

...with exactly the caveat you described, because the wasm port doesn't support websockets yet.

Alternatively you can run *cough* IE6 in JSLinux.

[anthk]

You can run w2k and probably XP under TinyEmu JS.

[marvin8]

v86 has Firefox: https://copy.sh/v86/?profile=archlinux&c=./networking.sh;ech...