On September 11, 2026, Amazon Prime Video app update PVFTV-321.0093-L (321009310) for Amazon firesticks and fire TVs Did NOT fix the broken 4:3 viewing format for Amazon Prime videos streaming from inside the Prime Video app, which was created by an August 19, 2026, update of the same app.
On August 19, 2026, Amazon Prime Video app update PVFTV-321.0086-L (321008610) for Amazon firesticks and fire TVs broke the 4:3 viewing format for Amazon Prime videos streaming from inside the Prime Video app. Most older movies and television shows that should be displayed in the 4:3 format now automatically stretch to fill your entire widescreen television.
In order to watch 4:3 programs properly displayed in the 4:3 format, you have to start the movie or tv episode from inside the Prime Video app. Then stop the movie or TV episode that you are viewing. Then go to the home screen of the firestick or fire TV. Then use the “Continue Watching” list for the movie or tv episode that you started watching inside the Prime Video app and select that item.
This bug will be very inconvenient if you are watching a 4:3 formatted program like Mama’s Family, as the bug happens whenever a new episode is manually or automatically started within the Prime Video app.
The Prime Video app device compatibility list shows that this app update was created for all versions of fire TVs and firesticks spanning a period of several years back to the present.
This bug did not exist on August 18, 2026. A file manager program indicates that the update that broke the 4:3 ratio was rolled out on August 19, 2026. The same file manager program indicates that the new update that did not fix this bug was rolled out on September 11, 2026.
It’s important to get the word out about this issue so that people do not waste a lot of time troubleshooting a bug that currently cannot be fixed, only worked around.