2 files changed, 5 insertions, 8 deletions
diff --git a/mailnews/compose/src/nsMsgCompFields.cpp b/mailnews/compose/src/nsMsgCompFields.cpp
index c65e6ca17..24192f594 100644
--- a/mailnews/compose/src/nsMsgCompFields.cpp
+++ b/mailnews/compose/src/nsMsgCompFields.cpp
@@ -600,7 +600,7 @@ nsMsgCompFields::SplitRecipients(const nsAString &aRecipients,
   *aLength = 0;
   *aResult = nullptr;
 
-  nsCOMArray<msgIAddressObject> header(EncodedHeader(NS_ConvertUTF16toUTF8(aRecipients)));
+  nsCOMArray<msgIAddressObject> header(EncodedHeaderW(aRecipients));
   nsTArray<nsString> results;
   if (aEmailAddressOnly)
     ExtractEmails(header, results);
@@ -623,8 +623,7 @@ nsresult nsMsgCompFields::SplitRecipientsEx(const nsAString &recipients,
                                             nsTArray<nsMsgRecipient> &aResult)
 {
   nsTArray<nsString> names, addresses;
-  ExtractAllAddresses(EncodedHeader(NS_ConvertUTF16toUTF8(recipients)), names,
-    addresses);
+  ExtractAllAddresses(EncodedHeaderW(recipients), names, addresses);
 
   uint32_t numAddresses = names.Length();
   for (uint32_t i = 0; i < numAddresses; ++i)
diff --git a/mailnews/compose/src/nsMsgCompose.cpp b/mailnews/compose/src/nsMsgCompose.cpp
index 4ce8e8def..a7c2140ad 100644
--- a/mailnews/compose/src/nsMsgCompose.cpp
+++ b/mailnews/compose/src/nsMsgCompose.cpp
@@ -2646,15 +2646,13 @@ NS_IMETHODIMP QuotingOutputStreamListener::OnStopRequest(nsIRequest *request, ns
       }
 
       nsCString fromEmailAddress;
-      ExtractEmail(EncodedHeader(NS_ConvertUTF16toUTF8(from)), fromEmailAddress);
+      ExtractEmail(EncodedHeaderW(from), fromEmailAddress);
 
       nsTArray<nsCString> toEmailAddresses;
-      ExtractEmails(EncodedHeader(NS_ConvertUTF16toUTF8(to)),
-        UTF16ArrayAdapter<>(toEmailAddresses));
+      ExtractEmails(EncodedHeaderW(to), UTF16ArrayAdapter<>(toEmailAddresses));
 
       nsTArray<nsCString> ccEmailAddresses;
-      ExtractEmails(EncodedHeader(NS_ConvertUTF16toUTF8(cc)),
-        UTF16ArrayAdapter<>(ccEmailAddresses));
+      ExtractEmails(EncodedHeaderW(cc), UTF16ArrayAdapter<>(ccEmailAddresses));
 
       nsCOMPtr<nsIPrefBranch> prefs (do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
       NS_ENSURE_SUCCESS(rv, rv);