To stop Alexa from showing conversations on a Fire tablet, you can turn off communications for the device or switch to Show Mode:
- Turn off communications
- Open the Alexa app, select Devices, then Echo & Alexa, choose your device, select Communications, and turn off Communications
- Switch to Show Mode
- Swipe down from the top of the home screen, tap the Show Mode toggle, or say “Alexa, switch to Show Mode” To disable Show Mode, swipe down from the top of the screen and toggle the switch to “off”, or say “Alexa, exit Show Mode”