3 files changed, 41 insertions, 4 deletions
diff --git a/toolkit/profile/nsProfileLock.cpp b/toolkit/profile/nsProfileLock.cpp
index d75b6082d3..a0ebadedae 100644
--- a/toolkit/profile/nsProfileLock.cpp
+++ b/toolkit/profile/nsProfileLock.cpp
@@ -197,7 +197,11 @@ nsresult nsProfileLock::LockWithFcntl(nsIFile *aLockFile)
     nsresult rv = NS_OK;
 
     nsAutoCString lockFilePath;
+#ifdef XP_WIN
+    rv = aLockFile->GetPersistentDescriptor(lockFilePath);
+#else
     rv = aLockFile->GetNativePath(lockFilePath);
+#endif
     if (NS_FAILED(rv)) {
         NS_ERROR("Could not get native path");
         return rv;
@@ -303,7 +307,11 @@ nsresult nsProfileLock::LockWithSymlink(nsIFile *aLockFile, bool aHaveFcntlLock)
 {
     nsresult rv;
     nsAutoCString lockFilePath;
+#ifdef XP_WIN
+    rv = aLockFile->GetPersistentDescriptor(lockFilePath);
+#else
     rv = aLockFile->GetNativePath(lockFilePath);
+#endif
     if (NS_FAILED(rv)) {
         NS_ERROR("Could not get native path");
         return rv;
diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
index 274631aac8..f9f007c6c8 100644
--- a/toolkit/xre/nsAppRunner.cpp
+++ b/toolkit/xre/nsAppRunner.cpp
@@ -2031,8 +2031,13 @@ SelectProfile(nsIProfileLock* *aResult, nsIToolkitProfileService* aProfileSvc, n
     profile->GetRootDir(getter_AddRefs(prefsJSFile));
     prefsJSFile->AppendNative(NS_LITERAL_CSTRING("prefs.js"));
     nsAutoCString pathStr;
+#ifdef XP_WIN
+    prefsJSFile->GetPersistentDescriptor(pathStr);
+#else
     prefsJSFile->GetNativePath(pathStr);
+#endif
     PR_fprintf(PR_STDERR, "Success: created profile '%s' at '%s'\n", arg, pathStr.get());
+
     bool exists;
     prefsJSFile->Exists(&exists);
     if (!exists) {
@@ -2271,11 +2276,15 @@ CheckCompatibility(nsIFile* aProfileDir, const nsCString& aVersion,
     return false;
 
   nsCOMPtr<nsIFile> lf;
-  rv = NS_NewNativeLocalFile(buf, false,
+  rv = NS_NewNativeLocalFile(EmptyCString(), false,
                              getter_AddRefs(lf));
   if (NS_FAILED(rv))
     return false;
 
+  rv = lf->SetPersistentDescriptor(buf);
+  if (NS_FAILED(rv))
+    return false;
+
   bool eq;
   rv = lf->Equals(aXULRunnerDir, &eq);
   if (NS_FAILED(rv) || !eq)
@@ -2286,11 +2295,15 @@ CheckCompatibility(nsIFile* aProfileDir, const nsCString& aVersion,
     if (NS_FAILED(rv))
       return false;
 
-    rv = NS_NewNativeLocalFile(buf, false,
+    rv = NS_NewNativeLocalFile(EmptyCString(), false,
                                getter_AddRefs(lf));
     if (NS_FAILED(rv))
       return false;
 
+    rv = lf->SetPersistentDescriptor(buf);
+    if (NS_FAILED(rv))
+      return false;
+
     rv = lf->Equals(aAppDir, &eq);
     if (NS_FAILED(rv) || !eq)
       return false;
@@ -2330,11 +2343,11 @@ WriteVersion(nsIFile* aProfileDir, const nsCString& aVersion,
   file->AppendNative(FILE_COMPATIBILITY_INFO);
 
   nsAutoCString platformDir;
-  aXULRunnerDir->GetNativePath(platformDir);
+  Unused << aXULRunnerDir->GetPersistentDescriptor(platformDir);
 
   nsAutoCString appDir;
   if (aAppDir)
-    aAppDir->GetNativePath(appDir);
+    Unused << aAppDir->GetPersistentDescriptor(appDir); 
 
   PRFileDesc *fd;
   nsresult rv =
@@ -3673,6 +3686,16 @@ XREMain::XRE_mainRun()
     }
   }
 
+#ifndef XP_WIN
+  nsCOMPtr<nsIFile> profileDir;
+  nsAutoCString path;
+  rv = mDirProvider.GetProfileStartupDir(getter_AddRefs(profileDir));
+  if (NS_SUCCEEDED(rv) && NS_SUCCEEDED(profileDir->GetNativePath(path)) && !IsUTF8(path)) {
+    PR_fprintf(PR_STDERR, "Error: The profile path is not valid UTF-8. Unable to continue.\n");
+    return NS_ERROR_FAILURE;
+  }
+#endif
+
   mDirProvider.DoStartup();
 
   // As FilePreferences need the profile directory, we must initialize right here.
diff --git a/toolkit/xre/nsUpdateDriver.cpp b/toolkit/xre/nsUpdateDriver.cpp
index 4994458852..c4c0a0f105 100644
--- a/toolkit/xre/nsUpdateDriver.cpp
+++ b/toolkit/xre/nsUpdateDriver.cpp
@@ -1075,7 +1075,13 @@ nsUpdateProcessor::ProcessUpdate(nsIUpdate* aUpdate)
     rv = ds->Get(XRE_EXECUTABLE_FILE, NS_GET_IID(nsIFile),
                  getter_AddRefs(binary));
     NS_ASSERTION(NS_SUCCEEDED(rv), "Can't get the binary path");
+#ifdef XP_WIN
+    nsAutoString binPathW;
+    binary->GetPath(binPathW);
+    NS_ConvertUTF16toUTF8 binPath(binPathW);
+#else
     binary->GetNativePath(binPath);
+#endif
   }
 
   // Copy the parameters to the StagedUpdateInfo structure shared with the