Is anyone else having issues with WebRTC and the latest release of FireFox?  We are showing one way media  - with media flowing properly TO the browser, but no media coming back from the browser.

Everything in the logs looks OK - no errors.  We are using SIP.js as the library of choice for signaling. 

We are showing SRTP packets flowing bi-directionally (using tcpdump), but since they are DTLS encrypted, I am unable to see exactly what is in each packet to determine if there is media being sent from the browser or they are just empty packets.

Any ideas and/or other folks seeing the same issue - would love to hear your thoughts.

Thanks,
Geoff