Proton Movies This release does not have a Play Store Description, so we grabbed one from version 1.0.2:

Watch videos from popular sites — or search the entire web — with Firefox for Fire TV. Use your Fire TV remote or app to play, pause, fast forward and rewind. The Firefox for Fire TV home screen even includes quick access to popular video sites and some of the web’s best content and ideas. Firefox for Fire TV is made by Mozilla, the non-profit champions of a healthy internet. Additional parental controls besides the App PIN protection feature in the Fire TV preferences will be enabled in future updates.