Hey Carl,
I never viewed a gaming system as a great way to use the web. Too cumbersome.
My recommendation is to either use a laptop that has HDMI and connect to the tv and then use a wireless mouse to navigate.
Another way is to get a streaming device that supports Android and use an all-in-one little bluetooth keyboard with built-in mousepad. Then just choose your browser (i.e. Firefox, Chrome, Opera, etc) and off you go. Alternatively, any Android phone offers an app that you can use it as a bluetooth remote for the streamer: https://play.google.com/store/apps/details?id=com.google.android.tv.remote&hl=en
Android Streamers (I use Minix Neo myself):
https://www.amazon.com/s/ref=a9_sc_1?rh=i%3Aaps%2Ck%3Aandroid+streamer&keywords=android+streamer&ie=UTF8&qid=1492627384
Small All-in-one-Keyboard (there are larger keyboards too):
https://www.amazon.com/iClever-Computer-Keyboards-Rechargeable-Bluetooth/dp/B00KWUMU92/ref=sr_1_25?s=pc&ie=UTF8&qid=1492627455&sr=1-25&keywords=bluetooth+keyboard