Camera not centering using firefox. Also, camera and audio not working with Chrome

So the recent updates have created problems with the camera and audio not working using Chrome and when using Firefox the camera is not centering.  It shows off to one side.  Is there a fix in the works for these?  It's killing my game time.

Did you try to use the beta of the A/V?

I have experienced the same issue, and it has been reported  elsewhere .

No, I have not tried the beta.  I don't know where to look.  Do you have a walk through I can use.  I'm not real computer savvy.

As said over there : The Beta Roll20 WebRTC is now available on the live production servers. It is not selected by default, you must enable it from the Settings (gear) tab, under the "Video + Audio Chat Options". This thread is only for the Beta WebRTC, which will eventually replace the existing chat option. For further assistance on the Beta WebRTC stuff, please click the 'over there' link :)