diff --git a/indra/newview/llcallfloater.cpp b/indra/newview/llcallfloater.cpp
index b2e9564f7d3bb13a3240577e604d998140f79e5e..328c3262787a2f94f83cbecb1650e892757253ac 100644
--- a/indra/newview/llcallfloater.cpp
+++ b/indra/newview/llcallfloater.cpp
@@ -167,6 +167,7 @@ BOOL LLCallFloater::postBuild()
 	//chrome="true" hides floater caption 
 	if (mDragHandle)
 		mDragHandle->setTitleVisible(TRUE);
+	updateTransparency(TT_ACTIVE); // force using active floater transparency (STORM-730)
 	
 	updateSession();
 
@@ -205,6 +206,17 @@ void LLCallFloater::draw()
 	LLTransientDockableFloater::draw();
 }
 
+// virtual
+void LLCallFloater::setFocus( BOOL b )
+{
+	LLTransientDockableFloater::setFocus(b);
+
+	// Force using active floater transparency (STORM-730).
+	// We have to override setFocus() for LLCallFloater because selecting an item
+	// of the voice morphing combobox causes the floater to lose focus and thus become transparent.
+	updateTransparency(TT_ACTIVE);
+}
+
 // virtual
 void LLCallFloater::onParticipantsChanged()
 {
diff --git a/indra/newview/llcallfloater.h b/indra/newview/llcallfloater.h
index 3bc70433530da2027c0895929d11715075a9b27c..00a3f76e5679d53ee2908cff0ab9776ebe04e289 100644
--- a/indra/newview/llcallfloater.h
+++ b/indra/newview/llcallfloater.h
@@ -64,6 +64,7 @@ class LLCallFloater : public LLTransientDockableFloater, LLVoiceClientParticipan
 	/*virtual*/ BOOL postBuild();
 	/*virtual*/ void onOpen(const LLSD& key);
 	/*virtual*/ void draw();
+	/*virtual*/ void setFocus( BOOL b );
 
 	/**
 	 * Is called by LLVoiceClient::notifyParticipantObservers when voice participant list is changed.
diff --git a/indra/newview/llfloatercamera.cpp b/indra/newview/llfloatercamera.cpp
index ad24c6534a4951cb0170a93a6f203c5d477809fb..90a9879949e4d2e80e8aa8f2f6d93dd4ade3f8e2 100644
--- a/indra/newview/llfloatercamera.cpp
+++ b/indra/newview/llfloatercamera.cpp
@@ -343,6 +343,7 @@ BOOL LLFloaterCamera::postBuild()
 {
 	setIsChrome(TRUE);
 	setTitleVisible(TRUE); // restore title visibility after chrome applying
+	updateTransparency(TT_ACTIVE); // force using active floater transparency (STORM-730)
 
 	mRotate = getChild<LLJoystickCameraRotate>(ORBIT);
 	mZoom = findChild<LLPanelCameraZoom>(ZOOM);
diff --git a/indra/newview/llmoveview.cpp b/indra/newview/llmoveview.cpp
index d38bb5aa4a45a240d006d7cb6c4229c16649a5aa..89d551f129e27447e65ac7ffce09228b8ea62c29 100644
--- a/indra/newview/llmoveview.cpp
+++ b/indra/newview/llmoveview.cpp
@@ -94,6 +94,7 @@ BOOL LLFloaterMove::postBuild()
 {
 	setIsChrome(TRUE);
 	setTitleVisible(TRUE); // restore title visibility after chrome applying
+	updateTransparency(TT_ACTIVE); // force using active floater transparency (STORM-730)
 	
 	LLDockableFloater::postBuild();