No, that is the chrome extension, you need to install the app on the ledger itself, not on your chrome browser.
Open the Ledger Manager Extension and install the Bitcoin Cash App.
I can fetch my Ledger Nano S in a few minutes and make some screenshots.
If you don't know where to get the Ledger Manager App, here you go:
https://www.ledgerwallet.com/apps/manager
What firmware version does your Ledger Nano S run on?