diff --git a/media/webrtc/signaling/src/jsep/JsepCodecDescription.h b/media/webrtc/signaling/src/jsep/JsepCodecDescription.h
index 61ba0f97bdc..933f559ceb4 100644
--- a/media/webrtc/signaling/src/jsep/JsepCodecDescription.h
+++ b/media/webrtc/signaling/src/jsep/JsepCodecDescription.h
@@ -324,8 +324,10 @@ struct JsepVideoCodecDescription : public JsepCodecDescription {
         mDefaultPt, SdpRtcpFbAttributeList::kNack, SdpRtcpFbAttributeList::pli);
     rtcpfb.PushEntry(
         mDefaultPt, SdpRtcpFbAttributeList::kCcm, SdpRtcpFbAttributeList::fir);
-    rtcpfb.PushEntry(
-        mDefaultPt, SdpRtcpFbAttributeList::kCcm, SdpRtcpFbAttributeList::tmmbr);
+    if (mUseTmmbr) {
+      rtcpfb.PushEntry(
+          mDefaultPt, SdpRtcpFbAttributeList::kCcm, SdpRtcpFbAttributeList::tmmbr);
+    }
   }
 
   SdpFmtpAttributeList::H264Parameters
@@ -668,6 +670,7 @@ struct JsepVideoCodecDescription : public JsepCodecDescription {
   uint32_t mMaxCpb;
   uint32_t mMaxDpb;
   uint32_t mMaxBr;
+  bool     mUseTmmbr;
   std::string mSpropParameterSets;
 };
 
diff --git a/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.cpp b/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.cpp
index 9988d7b5b56..330086cad63 100644
--- a/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.cpp
+++ b/media/webrtc/signaling/src/peerconnection/PeerConnectionImpl.cpp
@@ -966,6 +966,10 @@ PeerConnectionImpl::ConfigureJsepSessionCodecs() {
             videoCodec.mMaxFr = maxFr;
 
           }
+
+          videoCodec.mUseTmmbr = false;
+          branch->GetBoolPref("media.navigator.video.use_tmmbr",
+            &videoCodec.mUseTmmbr);
         }
         break;
       case SdpMediaSection::kText: