Streaming avatar only has voice-to-video enabled on Chrome

Hello. Integrated interactive avatar on my website. On all browsers, both mobile and PC (Chrome, Opera, Edge, Safari, Bravo ) the avatar has only voice-to-video input. On Firefox it has both text-to-video and voice-to-video input enabled.

Is there a parameter to enable / disable the two types of input? Some time ago, both input methods were active, and you could switch between them by pressing the corresponding button (mic icon and chat icon).

Thank you