Hi Pat ! I clear my cache, desactive all extensions/addons and I tested with fresh installation of mozzila. These probleme is not solved, but other Webrtc working. Here console's log : Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'self' 'unsafe-eval' https://*.googlesyndication.com https://*.doubleclick.net <a href="https://partner.googleadservices.com" rel="nofollow">https://partner.googleadservices.com</a> <a href="https://www.googletagservices.com" rel="nofollow">https://www.googletagservices.com</a> <a href="https://ssl.google-analytics.com" rel="nofollow">https://ssl.google-analytics.com</a> <a href="https://ajax.googleapis.com" rel="nofollow">https://ajax.googleapis.com</a> <a href="https://d3clqjduf2gvxg.cloudfront.net" rel="nofollow">https://d3clqjduf2gvxg.cloudfront.net</a> <a href="https://cdn.firebase.com" rel="nofollow">https://cdn.firebase.com</a> https://*.firebaseio.com https://*.tokbox.com https://*.opentok.com <a href="http://static.opentok.com" rel="nofollow">http://static.opentok.com</a>". Either the 'unsafe-inline' keyword, a hash ('sha256-...'), or a nonce ('nonce-...') is required to enable inline execution. app.roll20.net/:8 Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'self' 'unsafe-eval' https://*.googlesyndication.com https://*.doubleclick.net <a href="https://partner.googleadservices.com" rel="nofollow">https://partner.googleadservices.com</a> <a href="https://www.googletagservices.com" rel="nofollow">https://www.googletagservices.com</a> <a href="https://ssl.google-analytics.com" rel="nofollow">https://ssl.google-analytics.com</a> <a href="https://ajax.googleapis.com" rel="nofollow">https://ajax.googleapis.com</a> <a href="https://d3clqjduf2gvxg.cloudfront.net" rel="nofollow">https://d3clqjduf2gvxg.cloudfront.net</a> <a href="https://cdn.firebase.com" rel="nofollow">https://cdn.firebase.com</a> https://*.firebaseio.com https://*.tokbox.com https://*.opentok.com <a href="http://static.opentok.com" rel="nofollow">http://static.opentok.com</a>". Either the 'unsafe-inline' keyword, a hash ('sha256-...'), or a nonce ('nonce-...') is required to enable inline execution. app.roll20.net/:9 70 app.js?1409801439:22 TOUCH SUPPORTED: false app.js?1409801439:23 USING WEBGL ACCELERATION... app.js?1409801439:23 select app.js?1409801439:18 Switch mode to select app.js?1409801439:18 Initializing new dice engine with randomness... app.js?1409801439:32 Using random entropy app.js?1409801439:32 window resize app.js?1409801439:35 Final set zoom! app.js?1409801439:23 UPDATE GL SIZE! app.js?1409801439:23 Final set zoom! app.js?1409801439:23 tuts loaded tutorial_tips.js:7 Final page load. app.js?1409801439:28 Scan for new plays! app.js?1409801439:28 Auth'ed. app.js?1409801439:28 Go post auth! app.js?1409801439:28 Scan for new plays! app.js?1409801439:28 initial setup app.js?1409801439:28 refershing page listings! app.js?1409801439:30 Got players value... app.js?1409801439:28 joining game... app.js?1409801439:28 Player -JZ95tWXxDHuClDhf6Dg is offline... app.js?1409801439:26 Full load page! app.js?1409801439:26 We have 1 pages app.js?1409801439:28 Deferred finish joining... app.js?1409801439:28 Firebase Online app.js?1409801439:22 handle page changes app.js?1409801439:28 false app.js?1409801439:28 refershing page listings! app.js?1409801439:30 Do refresh link cache! app.js?1409801439:25 Swapping <a href="https://s3.amazonaws.com/files.d20.io/images/5938985/BpjLwc_oDji8C4f0hdGSmg/thumb.jpg?14132141625" rel="nofollow">https://s3.amazonaws.com/files.d20.io/images/5938985/BpjLwc_oDji8C4f0hdGSmg/thumb.jpg?14132141625</a> to <a href="https://s3.amazonaws.com/files.d20.io/images/5938985/BpjLwc_oDji8C4f0hdGSmg/max.jpg?14132141625" rel="nofollow">https://s3.amazonaws.com/files.d20.io/images/5938985/BpjLwc_oDji8C4f0hdGSmg/max.jpg?14132141625</a> app.js?1409801439:25 setting src app.js?1409801439:25 Reorder by ZORDER app.js?1409801439:26 init active page! app.js?1409801439:28 activate page! app.js:26 FULLY ACTIVATE VIEWS FOR PAGE. app.js:26 Graphics: 1 app.js:26 Paths: 0 app.js:26 Reorder by ZORDER app.js:26 Search took 5ms app.js:34 refershing page listings! app.js:30 initiatlizing video chat app.js:33 Connecting to WebRTC app.js:33 Connected to session app.js:33 Someone just connected. app.js:33 It's us? app.js:33 window resize app.js:35 Final set zoom! app.js:23 UPDATE GL SIZE! app.js:23 Final set zoom! Thank !