diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
index 77d572bb812..5a32c7914b3 100644
--- a/toolkit/xre/nsAppRunner.cpp
+++ b/toolkit/xre/nsAppRunner.cpp
@@ -617,7 +617,6 @@ NS_IMETHODIMP
 nsXULAppInfo::GetVendor(nsACString& aResult)
 {
   if (XRE_GetProcessType() == GeckoProcessType_Content) {
-    NS_WARNING("Attempt to get unavailable information in content process.");
     return NS_ERROR_NOT_AVAILABLE;
   }
   aResult.Assign(gAppData->vendor);
@@ -629,7 +628,6 @@ NS_IMETHODIMP
 nsXULAppInfo::GetName(nsACString& aResult)
 {
   if (XRE_GetProcessType() == GeckoProcessType_Content) {
-    NS_WARNING("Attempt to get unavailable information in content process.");
     return NS_ERROR_NOT_AVAILABLE;
   }
   aResult.Assign(gAppData->name);
@@ -641,7 +639,6 @@ NS_IMETHODIMP
 nsXULAppInfo::GetID(nsACString& aResult)
 {
   if (XRE_GetProcessType() == GeckoProcessType_Content) {
-    NS_WARNING("Attempt to get unavailable information in content process.");
     return NS_ERROR_NOT_AVAILABLE;
   }
   aResult.Assign(gAppData->ID);
@@ -695,7 +692,6 @@ NS_IMETHODIMP
 nsXULAppInfo::GetUAName(nsACString& aResult)
 {
   if (XRE_GetProcessType() == GeckoProcessType_Content) {
-    NS_WARNING("Attempt to get unavailable information in content process.");
     return NS_ERROR_NOT_AVAILABLE;
   }
   aResult.Assign(gAppData->UAName);