you could’t replace the existing web app.
Silk (calledInternet) is built-in; selectAppsfrom the home screen to find it.
You’ll need to download Firefox through the search icon in the upper left corner.

Also, Mozilla has stopped supporting Firefox on Fire TV, although it’s still available for download.
The Chromecast must be connected via HDMI to the back of the TV.
you’ve got the option to alsoAirPlay your Mac’s screento a connected Apple TV rig.

One such option is to plug a computer directly into your TV.
This will put whatever is on your machine directly onto your TV.
You’ll be able to use your keyboard and mouse and transmit audio over the cable.

To do this, simply use an HDMI cable to attach the computer and TV to each other.
SeeHow to Mirror a Laptop to a TVfor help.
The phone will look for the TV, usually identifying it by the model number.

When the model appears, select it.
You may be asked to enter a PIN provided by the TV.
Other devices might call thisScreen Share,Wi-Fi Direct, orMiracast.
Search the options app for these options.
Screen mirroring is supported on almost all Samsung Smart TVs.
If you don’t see your TV in the list, you might need to turn on mirroring manually.
Next, pick the option to dump the cache.
If that doesn’t work, try closing and reopening the surfing app.
From the Home screen, openApplications> selectBrowser>Menu>tweaks.
Next, go toPrivacyand check your cookie options.
UnderApps, selectSettings, choose the web web client (or other app) to lock, and selectLockorUnlock.