on <http://dapps.ethercasts.com/> there are so many dapps. I want to use them. How can I do?

Tried it with geth/mist. Since geth does never completely sync, I use it as --light. Then start Mist, the browser. But mostly when I paste the url of a dapp, it loads, but the screen remains white.

As I use ubuntu I have no metamask. And chrome / chromium is trouble to make run.

Can I use parity to access dapps?