Fire TVs occasionally experience a strange bug where the home screen appears to be zoomed out and all icons, elements, and thumbnails are very small. This issue has popped up on devices from time to time for years but it seems that Fire TV Smart TVs from Toshiba and Insignia, specifically, are seeing a surge of this issue occurring. While there is no known way to make it never happen again, the fix to restore how the Fire TV interface should look is very quick and easy.
To fix the issue, simply restart your Fire TV. The fastest way to do this is to hold the SELECT and PLAY buttons, simultaneously, on your remote for about 10 seconds. A message will appear informing you that the Fire TV will restart. If you’re having trouble getting the remote button combination to work, you can also restart a Fire TV Smart TV by navigating to Settings > Device & Software > Restart or on a stand-alone Fire TV, Fire TV Cube, or Fire TV Stick navigate to Settings > My Fire TV > Restart. Alternatively, on either a Fire TV Smart TV or stand-alone Fire TV, you can install the My Fire TV Shortcut app to take you right to the Restart menu with one click.
Note that on a Fire TV Smart TV, you need to use the gear icon on the main navigation menu to access settings. Pressing the gear icon on your remote will take you to a different set of settings where there is no option to restart. It’s also worth mentioning that turning a Fire TV Smart TV off and on does not actually restart the TV. That simply puts it to sleep and will not fix this issue. You must either follow one of the restart options mentioned above or pull the power plug completely to actually restart a Fire TV Smart TV.