# wowza WebRTC preview , I can not connect with firefox **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [February 17, 2017, 8:49am UTC](https://community.wowza.com/t/wowza-webrtc-preview-i-can-not-connect-with-firefox/48149 "2017-02-17T08:49:27Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![takahiro\_kobaru](https://avatars.discourse-cdn.com/v4/letter/t/43a26b/32.png) [@takahiro\_kobaru](https://community.wowza.com/u/takahiro_kobaru)\ **Post date:** [February 17, 2017, 8:49am UTC](https://community.wowza.com/t/wowza-webrtc-preview-i-can-not-connect-with-firefox/48149/1 "2017-02-17T08:49:27Z")
hi. Currently I’m trying to preview wowza webRTC, but I can not connect with firefox. The connection seems to be broken in the middle when getting SDP from webSocket connection with wowza The following will be the log at that time 2017-02-16 16:14:34 JST comment server INFO 200 - WebSocketSession.create[1760351976] - - -18384.288 - - - - - - - - - - - - - - - – - - - - - - - - 2017-02-16 16:14:34 JST comment server INFO 200 - HTTPWebRTCExchangeSessionInfoCustom.websocketSessionCreate: 1760351976 - - - 18384.288 - - - - - - - - - – - - - - - - - - - - - - - - 2017-02-16 16:14:34 JST comment server WARN 200 - HTTPRequestAdapter.service WebSocket invalid opCode: 12 - - - 18384.415 - - - - - - - - - - - – - - - - - - - - - - - - 2017-02-16 16:14:35 JST comment server INFO 200 - WebSocketSession.destroy[1760351976]: source:server status:-1 description:Unknown - - - 18384.417 - - - - - - - - – - - - - - - - - - - - - - - - 2017-02-16 16:14:35 JST comment server INFO 200 - HTTPWebRTCExchangeSessionInfoCustom.websocketSessionDestroy: 1760351976 - - - 18384.418 - - - - - - - - - – - - - - - - - - - - - - - - The cause of the error When sending sdp from firefox to websocket of wowza and sending 1101 or more letters An error occurred firefox info : 51.0.1 (64 bit) wowza : 4.6.0 When you get back to us, thank you for your reply. ---
**Author:** ![Jason\_Tuchler](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_tuchler/32/462_2.png) [@Jason\_Tuchler](https://community.wowza.com/u/Jason_Tuchler)\ **Post date:** [February 17, 2017, 9:51am UTC](https://community.wowza.com/t/wowza-webrtc-preview-i-can-not-connect-with-firefox/48149/2 "2017-02-17T09:51:57Z")
Hello, There was some Firefox changes that was addressed in Wowza Streaming Engine 4.6.0.01. I would recommend opening a support case [here](https://www.wowza.com/support/open-ticket) and request the latest Wowza Streaming Engine update that should resolve the Firefox connection issues you are having. Regards, JasonT ---
**Author:** ![Samson\_Radu](https://avatars.discourse-cdn.com/v4/letter/s/3be4f8/32.png) [@Samson\_Radu](https://community.wowza.com/u/Samson_Radu)\ **Post date:** [April 5, 2017, 9:35am UTC](https://community.wowza.com/t/wowza-webrtc-preview-i-can-not-connect-with-firefox/48149/3 "2017-04-05T09:35:02Z")
I’m having pretty much the same issue: HTTPRequestAdapter.service WebSocket invalid opCode: 7 Does downloading the latest Wowza installer: [https://www.wowza.com/pricing/installer](https://www.wowza.com/pricing/installer) work or the new version is not public yet. The name of the package is WowzaStreamingEngine-4.6.0-linux-x64-installer.run ---
**Author:** ![Jason\_Tuchler](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_tuchler/32/462_2.png) [@Jason\_Tuchler](https://community.wowza.com/u/Jason_Tuchler)\ **Post date:** [April 5, 2017, 5:46pm UTC](https://community.wowza.com/t/wowza-webrtc-preview-i-can-not-connect-with-firefox/48149/4 "2017-04-05T17:46:03Z")
Hello @Samson Radu The link you are referring to is a pubic installer vs an updater; the public installer does not have the current Firefox fixes. With a current support agreement you can access an updater that has these improvements (Current is 4.6.0.04) at: [www.wowza.com](http://www.wowza.com) -\> My Account -\> My Downloads Regards, Jason