diff --git a/Sandboxie/install/Templates.ini b/Sandboxie/install/Templates.ini
index 6f9fd297..53fea2be 100644
--- a/Sandboxie/install/Templates.ini
+++ b/Sandboxie/install/Templates.ini
@@ -3877,6 +3877,13 @@ DontCopy=*.wav
 DontCopy=*.webm
 DontCopy=*.wma
 DontCopy=*.wmv
+# For ProtectHostImages=y (issue 4394)
+DontCopy=%ProgramFiles%*\Mozilla Firefox\*
+DontCopy=%ProgramFiles%*\Firefox Nightly\*
+DontCopy=%ProgramFiles%*\Firefox Developer Edition\*
+DontCopy=%ProgramFiles%*\LibreWolf\*
+DontCopy=%ProgramFiles%*\Waterfox\*
+DontCopy=%ProgramFiles%*\Ablaze Floorp\*
 
 [Template_RpcPortBindings]
 Tmpl.Title=#4296