Please consult the full list of supported cryptocurrencies.
When you receive your Nano S, you have only the Bitcoin and Ethereum applications installed. To install other apps, first make sure that your firmware is updated to the latest version.
Open the Ledger Manager, connect your Nano S and enter your PIN. Select the Applications tab and you'll see the list of all available apps:
Select the cryptocurrency you wish to use and click on the green button (with a bottom arrow icon) to install the app. You may not be able to install all the apps in the same time (because of memory constrainsts).
Once the app is installed, you can activate it (using both buttons), making sure the browser support setting is disables (set on NO). Then launch the Ledger Wallet Bitcoin Chrome application which also supports all other cryptocurrencies (except Ethereum which has its own Chrome app).
The Chrome app will automatically switch to the correct cryptocurrency, depending of which app you activate on the Nano S.