--- a/netwerk/base/src/nsInputStreamPump.cpp
+++ b/netwerk/base/src/nsInputStreamPump.cpp
@@ -399,16 +399,20 @@ nsInputStreamPump::OnInputStreamReady(ns
             nextState = OnStateStart();
             break;
         case STATE_TRANSFER:
             nextState = OnStateTransfer();
             break;
         case STATE_STOP:
             nextState = OnStateStop();
             break;
+        default:
+            nextState = 0;
+            NS_NOTREACHED("Unknown enum value.");
+            return NS_ERROR_UNEXPECTED;
         }
 
         if (mState == nextState && !mSuspendCount) {
             NS_ASSERTION(mState == STATE_TRANSFER, "unexpected state");
             NS_ASSERTION(NS_SUCCEEDED(mStatus), "unexpected status");
 
             mWaiting = false;
             mStatus = EnsureWaiting();

--- a/netwerk/base/src/nsSocketTransport2.cpp
+++ b/netwerk/base/src/nsSocketTransport2.cpp
@@ -338,17 +338,17 @@ nsSocketInputStream::Available(PRUint32 
 
 NS_IMETHODIMP
 nsSocketInputStream::Read(char *buf, PRUint32 count, PRUint32 *countRead)
 {
     SOCKET_LOG(("nsSocketInputStream::Read [this=%x count=%u]\n", this, count));
 
     *countRead = 0;
 
-    PRFileDesc *fd;
+    PRFileDesc* fd = nsnull;
     {
         MutexAutoLock lock(mTransport->mLock);
 
         if (NS_FAILED(mCondition))
             return (mCondition == NS_BASE_STREAM_CLOSED) ? NS_OK : mCondition;
 
         fd = mTransport->GetFD_Locked();
         if (!fd)
@@ -359,17 +359,17 @@ nsSocketInputStream::Read(char *buf, PRU
 
     // cannot hold lock while calling NSPR.  (worried about the fact that PSM
     // synchronously proxies notifications over to the UI thread, which could
     // mistakenly try to re-enter this code.)
     PRInt32 n = PR_Read(fd, buf, count);
 
     SOCKET_LOG(("  PR_Read returned [n=%d]\n", n));
 
-    nsresult rv;
+    nsresult rv = NS_OK;
     {
         MutexAutoLock lock(mTransport->mLock);
 
 #ifdef ENABLE_SOCKET_TRACING
         if (n > 0)
             mTransport->TraceInBuf(buf, n);
 #endif
 
@@ -562,17 +562,17 @@ nsSocketOutputStream::Write(const char *
     SOCKET_LOG(("nsSocketOutputStream::Write [this=%x count=%u]\n", this, count));
 
     *countWritten = 0;
 
     // A write of 0 bytes can be used to force the initial SSL handshake.
     if (count == 0 && mByteCount)
         return NS_OK;
 
-    PRFileDesc *fd;
+    PRFileDesc* fd = nsnull;
     {
         MutexAutoLock lock(mTransport->mLock);
 
         if (NS_FAILED(mCondition))
             return mCondition;
         
         fd = mTransport->GetFD_Locked();
         if (!fd)
@@ -583,23 +583,23 @@ nsSocketOutputStream::Write(const char *
 
     // cannot hold lock while calling NSPR.  (worried about the fact that PSM
     // synchronously proxies notifications over to the UI thread, which could
     // mistakenly try to re-enter this code.)
     PRInt32 n = PR_Write(fd, buf, count);
 
     SOCKET_LOG(("  PR_Write returned [n=%d]\n", n));
 
-    nsresult rv;
+    nsresult rv = NS_OK;
     {
         MutexAutoLock lock(mTransport->mLock);
 
 #ifdef ENABLE_SOCKET_TRACING
-    if (n > 0)
-        mTransport->TraceOutBuf(buf, n);
+        if (n > 0)
+            mTransport->TraceOutBuf(buf, n);
 #endif
 
         mTransport->ReleaseFD_Locked(fd);
 
         if (n > 0)
             mByteCount += (*countWritten = n);
         else if (n < 0) {
             PRErrorCode code = PR_GetError();
@@ -1870,17 +1870,17 @@ nsSocketTransport::SetEventSink(nsITrans
     return NS_OK;
 }
 
 NS_IMETHODIMP
 nsSocketTransport::IsAlive(bool *result)
 {
     *result = false;
 
-    PRFileDesc *fd;
+    PRFileDesc* fd = nsnull;
     {
         MutexAutoLock lock(mLock);
         if (NS_FAILED(mCondition))
             return NS_OK;
         fd = GetFD_Locked();
         if (!fd)
             return NS_OK;
     }

--- a/netwerk/base/src/nsStandardURL.cpp
+++ b/netwerk/base/src/nsStandardURL.cpp
@@ -501,18 +501,18 @@ nsStandardURL::BuildNormalizedSpec(const
 {
     // Assumptions: all member URLSegments must be relative the |spec| argument
     // passed to this function.
 
     // buffers for holding escaped url segments (these will remain empty unless
     // escaping is required).
     nsCAutoString encUsername, encPassword, encHost, encDirectory,
       encBasename, encExtension, encQuery, encRef;
-    bool useEncUsername, useEncPassword, useEncHost, useEncDirectory,
-      useEncBasename, useEncExtension, useEncQuery, useEncRef;
+    bool useEncUsername, useEncPassword, useEncHost = false,
+      useEncDirectory, useEncBasename, useEncExtension, useEncQuery, useEncRef;
     nsCAutoString portbuf;
 
     //
     // escape each URL segment, if necessary, and calculate approximate normalized
     // spec length.
     //
     // [scheme://][username[:password]@]host[:port]/path[?query_string][#ref]
 

--- a/netwerk/base/src/nsURLHelper.cpp
+++ b/netwerk/base/src/nsURLHelper.cpp
@@ -853,18 +853,18 @@ net_ParseMediaType(const nsACString &aMe
     // Trim LWS leading and trailing whitespace from type.  We include '(' in
     // the trailing trim set to catch media-type comments, which are not at all
     // standard, but may occur in rare cases.
     const char* type = net_FindCharNotInSet(start, end, HTTP_LWS);
     const char* typeEnd = net_FindCharInSet(type, end, HTTP_LWS ";(");
 
     const char* charset = "";
     const char* charsetEnd = charset;
-    PRInt32 charsetParamStart;
-    PRInt32 charsetParamEnd;
+    PRInt32 charsetParamStart = 0;
+    PRInt32 charsetParamEnd = 0;
 
     // Iterate over parameters
     bool typeHasCharset = false;
     PRUint32 paramStart = flatStr.FindChar(';', typeEnd - start);
     if (paramStart != PRUint32(kNotFound)) {
         // We have parameters.  Iterate over them.
         PRUint32 curParamStart = paramStart + 1;
         do {

--- a/netwerk/cache/nsCacheService.cpp
+++ b/netwerk/cache/nsCacheService.cpp
@@ -1,12 +1,11 @@
 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 /* vim: set sw=4 ts=8 et tw=80 : */
-/*
- * ***** BEGIN LICENSE BLOCK *****
+/* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,
@@ -1382,45 +1381,46 @@ nsCacheService::EvictEntriesForClient(co
 
     nsCacheServiceAutoLock lock;
     nsresult res = NS_OK;
 
     if (storagePolicy == nsICache::STORE_ANYWHERE ||
         storagePolicy == nsICache::STORE_ON_DISK) {
 
         if (mEnableDiskDevice) {
-            nsresult rv;
+            nsresult rv = NS_OK;
             if (!mDiskDevice)
                 rv = CreateDiskDevice();
             if (mDiskDevice)
                 rv = mDiskDevice->EvictEntries(clientID);
-            if (NS_FAILED(rv)) res = rv;
+            if (NS_FAILED(rv))
+                res = rv;
         }
     }
 
     // Only clear the offline cache if it has been specifically asked for.
     if (storagePolicy == nsICache::STORE_OFFLINE) {
         if (mEnableOfflineDevice) {
-            nsresult rv;
+            nsresult rv = NS_OK;
             if (!mOfflineDevice)
                 rv = CreateOfflineDevice();
             if (mOfflineDevice)
                 rv = mOfflineDevice->EvictEntries(clientID);
-            if (NS_FAILED(rv)) res = rv;
+            if (NS_FAILED(rv))
+                res = rv;
         }
     }
 
     if (storagePolicy == nsICache::STORE_ANYWHERE ||
         storagePolicy == nsICache::STORE_IN_MEMORY) {
-
         // If there is no memory device, there is no need to evict it...
         if (mMemoryDevice) {
-            nsresult rv;
-            rv = mMemoryDevice->EvictEntries(clientID);
-            if (NS_FAILED(rv)) res = rv;
+            nsresult rv = mMemoryDevice->EvictEntries(clientID);
+            if (NS_FAILED(rv))
+                res = rv;
         }
     }
 
     return res;
 }
 
 
 nsresult        

--- a/netwerk/cache/nsDiskCacheBlockFile.h
+++ b/netwerk/cache/nsDiskCacheBlockFile.h
@@ -1,11 +1,11 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
- * ***** BEGIN LICENSE BLOCK *****
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set sw=4 ts=8 et tw=80 : */
+/* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,

--- a/netwerk/cache/nsDiskCacheDeviceSQL.cpp
+++ b/netwerk/cache/nsDiskCacheDeviceSQL.cpp
@@ -1890,17 +1890,17 @@ nsOfflineCacheDevice::GetMatchingNamespa
   bool hasRows;
   rv = statement->ExecuteStep(&hasRows);
   NS_ENSURE_SUCCESS(rv, rv);
 
   *out = nsnull;
 
   bool found = false;
   nsCString nsSpec;
-  PRInt32 nsType;
+  PRInt32 nsType = 0;
   nsCString nsData;
 
   while (hasRows)
   {
     PRInt32 itemType;
     rv = statement->GetInt32(2, &itemType);
     NS_ENSURE_SUCCESS(rv, rv);
 

--- a/netwerk/cookie/nsCookieService.cpp
+++ b/netwerk/cookie/nsCookieService.cpp
@@ -79,16 +79,17 @@
 #include "nsNetCID.h"
 #include "nsAppDirectoryServiceDefs.h"
 #include "nsIPrivateBrowsingService.h"
 #include "nsNetCID.h"
 #include "mozilla/storage.h"
 #include "mozilla/FunctionTimer.h"
 #include "mozilla/Util.h" // for DebugOnly
 
+using namespace mozilla;
 using namespace mozilla::net;
 
 /******************************************************************************
  * nsCookieService impl:
  * useful types & constants
  ******************************************************************************/
 
 static nsCookieService *gCookieService;
@@ -3536,17 +3537,17 @@ nsCookieService::CookieExists(nsICookie2
 // by lastAccessed time.
 void
 nsCookieService::FindStaleCookie(nsCookieEntry *aEntry,
                                  PRInt64 aCurrentTime,
                                  nsListIter &aIter)
 {
   aIter.entry = NULL;
 
-  PRInt64 oldestTime;
+  PRInt64 oldestTime = 0;
   const nsCookieEntry::ArrayType &cookies = aEntry->GetCookies();
   for (nsCookieEntry::IndexType i = 0; i < cookies.Length(); ++i) {
     nsCookie *cookie = cookies[i];
 
     // If we found an expired cookie, we're done.
     if (cookie->Expiry() <= aCurrentTime) {
       aIter.entry = aEntry;
       aIter.index = i;
@@ -3667,18 +3668,19 @@ nsCookieService::RemoveCookieFromList(co
     nsCOMPtr<mozIStorageBindingParamsArray> paramsArray(aParamsArray);
     if (!paramsArray) {
       stmt->NewBindingParamsArray(getter_AddRefs(paramsArray));
     }
 
     nsCOMPtr<mozIStorageBindingParams> params;
     paramsArray->NewBindingParams(getter_AddRefs(params));
 
-    nsresult rv = params->BindUTF8StringByName(NS_LITERAL_CSTRING("name"),
-                                               aIter.Cookie()->Name());
+    DebugOnly<nsresult> rv =
+      params->BindUTF8StringByName(NS_LITERAL_CSTRING("name"),
+                                   aIter.Cookie()->Name());
     NS_ASSERT_SUCCESS(rv);
 
     rv = params->BindUTF8StringByName(NS_LITERAL_CSTRING("host"),
                                       aIter.Cookie()->Host());
     NS_ASSERT_SUCCESS(rv);
 
     rv = params->BindUTF8StringByName(NS_LITERAL_CSTRING("path"),
                                       aIter.Cookie()->Path());
@@ -3713,22 +3715,22 @@ nsCookieService::RemoveCookieFromList(co
 
 void
 bindCookieParameters(mozIStorageBindingParamsArray *aParamsArray,
                      const nsCString &aBaseDomain,
                      const nsCookie *aCookie)
 {
   NS_ASSERTION(aParamsArray, "Null params array passed to bindCookieParameters!");
   NS_ASSERTION(aCookie, "Null cookie passed to bindCookieParameters!");
-  nsresult rv;
 
   // Use the asynchronous binding methods to ensure that we do not acquire the
   // database lock.
   nsCOMPtr<mozIStorageBindingParams> params;
-  rv = aParamsArray->NewBindingParams(getter_AddRefs(params));
+  DebugOnly<nsresult> rv =
+    aParamsArray->NewBindingParams(getter_AddRefs(params));
   NS_ASSERT_SUCCESS(rv);
 
   // Bind our values to params
   rv = params->BindUTF8StringByName(NS_LITERAL_CSTRING("baseDomain"),
                                     aBaseDomain);
   NS_ASSERT_SUCCESS(rv);
 
   rv = params->BindUTF8StringByName(NS_LITERAL_CSTRING("name"),

--- a/netwerk/mime/nsMIMEHeaderParamImpl.cpp
+++ b/netwerk/mime/nsMIMEHeaderParamImpl.cpp
@@ -1,11 +1,10 @@
 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:expandtab:shiftwidth=2:tabstop=4:
- */
+/* vim: set sw=4 ts=8 et tw=80 : */
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
@@ -918,17 +917,17 @@ static const char especials[] = "()<>@,;
 // Decode RFC2047-encoded words in the input and convert the result to UTF-8.
 // If aOverrideCharset is true, charset in RFC2047-encoded words is 
 // ignored and aDefaultCharset is assumed, instead. aDefaultCharset
 // is also used to convert raw octets (without RFC 2047 encoding) to UTF-8.
 //static
 nsresult DecodeRFC2047Str(const char *aHeader, const char *aDefaultCharset, 
                           bool aOverrideCharset, nsACString &aResult)
 {
-  const char *p, *q, *r;
+  const char *p, *q = nsnull, *r;
   char *decodedText;
   const char *begin; // tracking pointer for where we are in the input buffer
   PRInt32 isLastEncodedWord = 0;
   const char *charsetStart, *charsetEnd;
   char charset[80];
 
   // initialize charset name to an empty string
   charset[0] = '\0';
@@ -1054,9 +1053,8 @@ nsresult DecodeRFC2047Str(const char *aH
   CopyRawHeader(begin, strlen(begin), aDefaultCharset, aResult);
 
   nsCAutoString tempStr(aResult);
   tempStr.ReplaceChar('\t', ' ');
   aResult = tempStr;
 
   return NS_OK;
 }
-

--- a/netwerk/protocol/data/Makefile.in
+++ b/netwerk/protocol/data/Makefile.in
@@ -34,16 +34,17 @@
 # the terms of any one of the MPL, the GPL or the LGPL.
 #
 # ***** END LICENSE BLOCK *****
 
 DEPTH     = ../../..
 topsrcdir = @top_srcdir@
 srcdir    = @srcdir@
 VPATH     = @srcdir@
+FAIL_ON_WARNINGS = 1
 
 include $(DEPTH)/config/autoconf.mk
 
 MODULE         = necko
 LIBRARY_NAME   = nkdata_s
 LIBXUL_LIBRARY = 1
 
 FORCE_STATIC_LIB = 1

--- a/netwerk/protocol/device/Makefile.in
+++ b/netwerk/protocol/device/Makefile.in
@@ -33,16 +33,17 @@
 # the terms of any one of the MPL, the GPL or the LGPL.
 #
 # ***** END LICENSE BLOCK *****
 
 DEPTH     = ../../..
 topsrcdir = @top_srcdir@
 srcdir    = @srcdir@
 VPATH     = @srcdir@
+FAIL_ON_WARNINGS = 1
 
 include $(DEPTH)/config/autoconf.mk
 
 MODULE = deviceprotocol
 LIBRARY_NAME = nkdevice_s
 FORCE_STATIC_LIB = 1
 LIBXUL_LIBRARY = 1
 

--- a/netwerk/protocol/file/Makefile.in
+++ b/netwerk/protocol/file/Makefile.in
@@ -34,16 +34,17 @@
 # the terms of any one of the MPL, the GPL or the LGPL.
 #
 # ***** END LICENSE BLOCK *****
 
 DEPTH     = ../../..
 topsrcdir = @top_srcdir@
 srcdir    = @srcdir@
 VPATH     = @srcdir@
+FAIL_ON_WARNINGS = 1
 
 include $(DEPTH)/config/autoconf.mk
 
 MODULE         = necko
 LIBRARY_NAME   = nkfile_s
 LIBXUL_LIBRARY = 1
 XPIDL_MODULE   = necko_file
 GRE_MODULE     = 1

--- a/netwerk/protocol/ftp/Makefile.in
+++ b/netwerk/protocol/ftp/Makefile.in
@@ -34,16 +34,17 @@
 # the terms of any one of the MPL, the GPL or the LGPL.
 #
 # ***** END LICENSE BLOCK *****
 
 DEPTH     = ../../..
 topsrcdir = @top_srcdir@
 srcdir    = @srcdir@
 VPATH     = @srcdir@
+FAIL_ON_WARNINGS = 1
 
 include $(DEPTH)/config/autoconf.mk
 
 MODULE         = necko
 LIBRARY_NAME   = nkftp_s
 LIBXUL_LIBRARY = 1
 XPIDL_MODULE   = necko_ftp
 GRE_MODULE     = 1

--- a/netwerk/protocol/http/HttpChannelParentListener.cpp
+++ b/netwerk/protocol/http/HttpChannelParentListener.cpp
@@ -1,11 +1,10 @@
 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set sw=2 ts=8 et tw=80 : */
-
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *

--- a/netwerk/protocol/http/PHttpChannelParams.h
+++ b/netwerk/protocol/http/PHttpChannelParams.h
@@ -1,28 +1,27 @@
 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set sw=2 ts=8 et tw=80 : */
-
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,
  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  * for the specific language governing rights and limitations under the
  * License.
  *
  * The Original Code is mozilla.org code.
  *
  * The Initial Developer of the Original Code is
- *  The Mozilla Foundation
+ * The Mozilla Foundation
  * Portions created by the Initial Developer are Copyright (C) 2010
  * the Initial Developer. All Rights Reserved.
  *
  * Contributor(s):
  *   Jae-Seong Lee-Russo <lusian@gmail.com>
  *
  * Alternatively, the contents of this file may be used under the terms of
  * either the GNU General Public License Version 2 or later (the "GPL"), or

--- a/netwerk/protocol/http/nsHttpChannel.cpp
+++ b/netwerk/protocol/http/nsHttpChannel.cpp
@@ -2374,21 +2374,23 @@ nsHttpChannel::OpenNormalCacheEntry()
     nsCAutoString cacheKey;
     GenerateCacheKey(mPostID, cacheKey);
 
     nsCacheStoragePolicy storagePolicy = DetermineStoragePolicy();
 
     nsCOMPtr<nsICacheSession> session;
     rv = gHttpHandler->GetCacheSession(storagePolicy,
                                        getter_AddRefs(session));
-    if (NS_FAILED(rv)) return rv;
-
-    nsCacheAccessMode accessRequested;
+    if (NS_FAILED(rv))
+        return rv;
+
+    nsCacheAccessMode accessRequested = 0;
     rv = DetermineCacheAccess(&accessRequested);
-    if (NS_FAILED(rv)) return rv;
+    if (NS_FAILED(rv))
+        return rv;
 
     mOnCacheEntryAvailableCallback =
         &nsHttpChannel::OnNormalCacheEntryAvailable;
     rv = session->AsyncOpenCacheEntry(
         cacheKey,
         accessRequested,
         this,
         mLoadFlags & LOAD_BYPASS_LOCAL_CACHE_IF_BUSY);

--- a/netwerk/protocol/res/Makefile.in
+++ b/netwerk/protocol/res/Makefile.in
@@ -34,16 +34,17 @@
 # the terms of any one of the MPL, the GPL or the LGPL.
 #
 # ***** END LICENSE BLOCK *****
 
 DEPTH     = ../../..
 topsrcdir = @top_srcdir@
 srcdir    = @srcdir@
 VPATH     = @srcdir@
+FAIL_ON_WARNINGS = 1
 
 include $(DEPTH)/config/autoconf.mk
 
 MODULE         = necko
 LIBRARY_NAME   = nkres_s
 LIBXUL_LIBRARY = 1
 XPIDL_MODULE   = necko_res
 GRE_MODULE     = 1

--- a/netwerk/protocol/viewsource/Makefile.in
+++ b/netwerk/protocol/viewsource/Makefile.in
@@ -35,16 +35,17 @@
 # the terms of any one of the MPL, the GPL or the LGPL.
 #
 # ***** END LICENSE BLOCK *****
 
 DEPTH     = ../../..
 topsrcdir = @top_srcdir@
 srcdir    = @srcdir@
 VPATH     = @srcdir@
+FAIL_ON_WARNINGS = 1
 
 include $(DEPTH)/config/autoconf.mk
 
 MODULE         = necko
 LIBRARY_NAME   = nkviewsource_s
 LIBXUL_LIBRARY = 1
 XPIDL_MODULE   = necko_viewsource
 GRE_MODULE     = 1

--- a/netwerk/protocol/websocket/Makefile.in
+++ b/netwerk/protocol/websocket/Makefile.in
@@ -34,16 +34,17 @@
 # the terms of any one of the MPL, the GPL or the LGPL.
 #
 # ***** END LICENSE BLOCK ***** */
 
 DEPTH     = ../../..
 topsrcdir = @top_srcdir@
 srcdir    = @srcdir@
 VPATH     = @srcdir@
+FAIL_ON_WARNINGS = 1
 
 include $(DEPTH)/config/autoconf.mk
 
 MODULE         = necko
 LIBRARY_NAME   = nkwebsocket_s
 LIBXUL_LIBRARY = 1
 XPIDL_MODULE   = necko_websocket
 GRE_MODULE     = 1

--- a/netwerk/protocol/wyciwyg/Makefile.in
+++ b/netwerk/protocol/wyciwyg/Makefile.in
@@ -33,16 +33,17 @@
 # the terms of any one of the MPL, the GPL or the LGPL.
 #
 # ***** END LICENSE BLOCK *****
 
 DEPTH		= ../../..
 topsrcdir	= @top_srcdir@
 srcdir		= @srcdir@
 VPATH		= @srcdir@
+FAIL_ON_WARNINGS = 1
 
 include $(DEPTH)/config/autoconf.mk
 
 MODULE		= necko
 LIBRARY_NAME	= nkwyciwyg_s
 LIBXUL_LIBRARY	= 1
 XPIDL_MODULE	= necko_wyciwyg
 GRE_MODULE	= 1

--- a/netwerk/streamconv/converters/mozTXTToHTMLConv.cpp
+++ b/netwerk/streamconv/converters/mozTXTToHTMLConv.cpp
@@ -799,17 +799,17 @@ mozTXTToHTMLConv::GlyphHit(const PRUnich
 {
   PRUnichar text0 = aInString[0]; 
   PRUnichar text1 = aInString[1];
   PRUnichar firstChar = (col0 ? text0 : text1);
 
   // temporary variable used to store the glyph html text
   nsAutoString outputHTML;
   bool bTestSmilie;
-  bool bArg;
+  bool bArg = false;
   int i;
 
   // refactor some of this mess to avoid code duplication and speed execution a bit
   // there are two cases that need to be tried one after another. To avoid a lot of
   // duplicate code, rolling into a loop
 
   i = 0;
   while ( i < 2 )

--- a/netwerk/streamconv/test/TestStreamConv.cpp
+++ b/netwerk/streamconv/test/TestStreamConv.cpp
@@ -98,17 +98,18 @@ public:
         if (NS_FAILED(rv)) return rv;
 
         char *buffer = (char*)nsMemory::Alloc(len + 1);
         if (!buffer) return NS_ERROR_OUT_OF_MEMORY;
 
         rv = inStr->Read(buffer, len, &read);
         buffer[len] = '\0';
         if (NS_SUCCEEDED(rv)) {
-            printf("CONTEXT %p: Received %u bytes and the following data: \n %s\n\n", ctxt, read, buffer);
+            printf("CONTEXT %p: Received %u bytes and the following data: \n %s\n\n",
+                   static_cast<void*>(ctxt), read, buffer);
         }
         nsMemory::Free(buffer);
 
         return NS_OK;
     }
 
     // nsIRequestObserver methods
     NS_IMETHOD OnStartRequest(nsIRequest* request, nsISupports *ctxt) { return NS_OK; }

--- a/netwerk/test/TestCookie.cpp
+++ b/netwerk/test/TestCookie.cpp
@@ -520,17 +520,17 @@ main(PRInt32 argc, char *argv[])
       // (a later cookie overwriting an earlier one, in the same header string)
       SetACookie(cookieService, "http://multiple.cookies/", nsnull, "test=multiple; domain=.multiple.cookies \n test=different \n test=same; domain=.multiple.cookies \n newtest=ciao \n newtest=foo; max-age=-6 \n newtest=reincarnated", nsnull);
       GetACookie(cookieService, "http://multiple.cookies/", nsnull, getter_Copies(cookie));
       rv[0] = CheckResult(cookie.get(), MUST_NOT_CONTAIN, "test=multiple");
       rv[1] = CheckResult(cookie.get(), MUST_CONTAIN, "test=different");
       rv[2] = CheckResult(cookie.get(), MUST_CONTAIN, "test=same");
       rv[3] = CheckResult(cookie.get(), MUST_NOT_CONTAIN, "newtest=ciao");
       rv[4] = CheckResult(cookie.get(), MUST_NOT_CONTAIN, "newtest=foo");
-      rv[5] = CheckResult(cookie.get(), MUST_CONTAIN, "newtest=reincarnated") != nsnull;
+      rv[5] = CheckResult(cookie.get(), MUST_CONTAIN, "newtest=reincarnated");
       SetACookie(cookieService, "http://multiple.cookies/", nsnull, "test=expiry; domain=.multiple.cookies; max-age=0", nsnull);
       GetACookie(cookieService, "http://multiple.cookies/", nsnull, getter_Copies(cookie));
       rv[6] = CheckResult(cookie.get(), MUST_NOT_CONTAIN, "test=same");
       SetACookie(cookieService, "http://multiple.cookies/", nsnull,  "\n test=different; max-age=0 \n", nsnull);
       GetACookie(cookieService, "http://multiple.cookies/", nsnull, getter_Copies(cookie));
       rv[7] = CheckResult(cookie.get(), MUST_NOT_CONTAIN, "test=different");
       SetACookie(cookieService, "http://multiple.cookies/", nsnull,  "newtest=dead; max-age=0", nsnull);
       GetACookie(cookieService, "http://multiple.cookies/", nsnull, getter_Copies(cookie));