diff --git a/modules/juce_gui_extra/native/juce_android_WebBrowserComponent.cpp b/modules/juce_gui_extra/native/juce_android_WebBrowserComponent.cpp
index 1542168830..e6bec05eea 100644
--- a/modules/juce_gui_extra/native/juce_android_WebBrowserComponent.cpp
+++ b/modules/juce_gui_extra/native/juce_android_WebBrowserComponent.cpp
@@ -27,6 +27,10 @@ WebBrowserComponent::WebBrowserComponent (const bool unloadPageWhenBrowserIsHidd
       blankPageShown (false),
       unloadPageWhenBrowserIsHidden (unloadPageWhenBrowserIsHidden_)
 {
+    // Unfortunately, WebBrowserComponent is not implemented for Android yet!
+    // This is just a stub implementation without any useful functionality.
+    jassertfalse;
+
     setOpaque (true);
 }
 
diff --git a/modules/juce_gui_extra/native/juce_linux_WebBrowserComponent.cpp b/modules/juce_gui_extra/native/juce_linux_WebBrowserComponent.cpp
index 13d1981c37..6de6880e02 100644
--- a/modules/juce_gui_extra/native/juce_linux_WebBrowserComponent.cpp
+++ b/modules/juce_gui_extra/native/juce_linux_WebBrowserComponent.cpp
@@ -32,6 +32,10 @@ WebBrowserComponent::WebBrowserComponent (const bool unloadPageWhenBrowserIsHidd
       blankPageShown (false),
       unloadPageWhenBrowserIsHidden (unloadPageWhenBrowserIsHidden_)
 {
+    // Unfortunately, WebBrowserComponent is not implemented for Linux yet!
+    // This is just a stub implementation without any useful functionality.
+    jassertfalse;
+
     setOpaque (true);
 }