diff --git a/themes/classic/messenger/mac/messenger.css b/themes/classic/messenger/mac/messenger.css
index 7d946adba7f6..89cc2bd67b14 100644
--- a/themes/classic/messenger/mac/messenger.css
+++ b/themes/classic/messenger/mac/messenger.css
@@ -337,6 +337,12 @@
     list-style-image      : url("chrome://messenger/skin/server-remote-lock.gif");
   }
 
+/* POP3 folders */
+.folderMenuItem[IsServer="true"][ServerType="pop3"][IsSecure="true"]
+  {
+    list-style-image      : url("chrome://messenger/skin/server-remote-lock.gif");
+  }
+
 /* Local Servers */
 .folderMenuItem[IsServer="true"][ServerType="none"]
   {
diff --git a/themes/classic/messenger/win/messenger.css b/themes/classic/messenger/win/messenger.css
index e029144ecf4f..83af5ba46d14 100644
--- a/themes/classic/messenger/win/messenger.css
+++ b/themes/classic/messenger/win/messenger.css
@@ -333,6 +333,12 @@
     list-style-image      : url("chrome://messenger/skin/server-remote-lock.gif");
   }
 
+/* POP3 folders */
+.folderMenuItem[IsServer="true"][ServerType="pop3"][IsSecure="true"]
+  {
+    list-style-image      : url("chrome://messenger/skin/server-remote-lock.gif");
+  }
+
 /* Local Servers */
 .folderMenuItem[IsServer="true"][ServerType="none"]
   {
diff --git a/themes/modern/messenger/messenger.css b/themes/modern/messenger/messenger.css
index 263c58ca7fdc..2ef20b381bd2 100644
--- a/themes/modern/messenger/messenger.css
+++ b/themes/modern/messenger/messenger.css
@@ -309,6 +309,10 @@
   list-style-image: url("chrome://messenger/skin/icons/server-remote-lock.gif");
 }
 
+.folderMenuItem[IsServer="true"][ServerType="pop3"][IsSecure="true"] {
+  list-style-image: url("chrome://messenger/skin/icons/server-remote-lock.gif");
+}
+
 .folderMenuItem[IsServer="true"][ServerType="none"] {
   list-style-image: url("chrome://messenger/skin/icons/server-local.gif");
 }