2 files changed, 8 insertions, 0 deletions
diff --git a/mailnews/compose/src/nsMsgCompUtils.cpp b/mailnews/compose/src/nsMsgCompUtils.cpp
index 6632e3257c..f31c5dc1f3 100644
--- a/mailnews/compose/src/nsMsgCompUtils.cpp
+++ b/mailnews/compose/src/nsMsgCompUtils.cpp
@@ -118,7 +118,11 @@ nsMsgCreateTempFileName(const char *tFileName)
     return nullptr;
 
   nsCString tempString;
+#ifdef XP_WIN
+  rv = tmpFile->GetPersistentDescriptor(tempString);
+#else
   rv = tmpFile->GetNativePath(tempString);
+#endif
   if (NS_FAILED(rv))
     return nullptr;
 
diff --git a/mailnews/compose/src/nsMsgCompose.cpp b/mailnews/compose/src/nsMsgCompose.cpp
index a7c2140ad7..3dbf741878 100644
--- a/mailnews/compose/src/nsMsgCompose.cpp
+++ b/mailnews/compose/src/nsMsgCompose.cpp
@@ -4518,7 +4518,11 @@ nsMsgCompose::ProcessSignature(nsIMsgIdentity *identity, bool aQuoted, nsString
     {
       rv = identity->GetSignature(getter_AddRefs(sigFile));
       if (NS_SUCCEEDED(rv) && sigFile) {
+#ifdef XP_WIN
+        rv = sigFile->GetPersistentDescriptor(sigNativePath);
+#else
         rv = sigFile->GetNativePath(sigNativePath);
+#endif
         if (NS_SUCCEEDED(rv) && !sigNativePath.IsEmpty()) {
           bool exists = false;
           sigFile->Exists(&exists);