diff --git a/mozilla/docshell/base/nsDocShell.cpp b/mozilla/docshell/base/nsDocShell.cpp
index 8c205c25103..85cd000e125 100644
--- a/mozilla/docshell/base/nsDocShell.cpp
+++ b/mozilla/docshell/base/nsDocShell.cpp
@@ -1866,7 +1866,7 @@ nsDocShell::FindChildWithName(const PRUnichar * aName,
             continue;
 
         child->GetName(getter_Copies(childName));
-        if (name.EqualsWithConversion(childName)) {
+        if (name.Equals(childName)) {
             *_retval = child;
             NS_ADDREF(*_retval);
             break;
diff --git a/mozilla/webshell/tests/viewer/nsBrowserWindow.cpp b/mozilla/webshell/tests/viewer/nsBrowserWindow.cpp
index 5b9b465bf80..0db83464e4a 100644
--- a/mozilla/webshell/tests/viewer/nsBrowserWindow.cpp
+++ b/mozilla/webshell/tests/viewer/nsBrowserWindow.cpp
@@ -2040,7 +2040,7 @@ nsBrowserWindow::FindWebShellWithName(const PRUnichar* aName, nsIWebShell*& aRes
       nsXPIDLString name;
       nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
       if (NS_OK == docShellAsItem->GetName(getter_Copies(name))) {
-        if (aNameStr.EqualsWithConversion(name)) {
+        if (aNameStr.Equals(name)) {
           aResult = webShell;
           NS_ADDREF(aResult);
           return NS_OK;
diff --git a/mozilla/webshell/tests/viewer/nsXPBaseWindow.cpp b/mozilla/webshell/tests/viewer/nsXPBaseWindow.cpp
index 73bdff750a5..51501cae244 100644
--- a/mozilla/webshell/tests/viewer/nsXPBaseWindow.cpp
+++ b/mozilla/webshell/tests/viewer/nsXPBaseWindow.cpp
@@ -436,7 +436,7 @@ nsXPBaseWindow::FindWebShellWithName(const PRUnichar* aName,
   if (webShell) {
     nsXPIDLString name;
     if (NS_SUCCEEDED(docShellAsItem->GetName(getter_Copies(name)))) {
-      if (aNameStr.EqualsWithConversion(name)) {
+      if (aNameStr.Equals(name)) {
         aResult = webShell;
         NS_ADDREF(aResult);
         return NS_OK;