[pixel_popping]

Browsers are sandboxes, your native client often isn't, there is definitely a huge advantage, portability and embeddability as well, it's also simpler to sniff traffic (and MITM it).

[jqpabc123]

Doesn't this limit your ability to share resources and transfer data?

[pixel_popping]

Why would it? You have access to your entire filesystem via the browser.