I don&#x27;t think MSE is yet enabled on Firefox mobile, it was not working the last time I tested.<p>It says unsupported here, I guess this one is up to date:
<a href="https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;API&#x2F;MediaSource" rel="nofollow">https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;API&#x2F;MediaSource</a>