--- a/mailnews/mime/src/nsCMS.cpp
+++ b/mailnews/mime/src/nsCMS.cpp
@@ -154,34 +154,34 @@ NS_IMETHODIMP nsCMSMessage::GetSignerCom
   NSSCMSSignerInfo *si = GetTopLevelSignerInfo();
   if (!si)
     return NS_ERROR_FAILURE;
 
   *aName = NSS_CMSSignerInfo_GetSignerCommonName(si);
   return NS_OK;
 }
 
-NS_IMETHODIMP nsCMSMessage::ContentIsEncrypted(bool *isEncrypted)
+NS_IMETHODIMP nsCMSMessage::ContentIsEncrypted(PRBool *isEncrypted)
 {
   nsNSSShutDownPreventionLock locker;
   if (isAlreadyShutDown())
     return NS_ERROR_NOT_AVAILABLE;
 
   PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("nsCMSMessage::ContentIsEncrypted\n"));
   NS_ENSURE_ARG(isEncrypted);
 
   if (!m_cmsMsg)
     return NS_ERROR_FAILURE;
 
   *isEncrypted = NSS_CMSMessage_IsEncrypted(m_cmsMsg);
 
   return NS_OK;
 }
 
-NS_IMETHODIMP nsCMSMessage::ContentIsSigned(bool *isSigned)
+NS_IMETHODIMP nsCMSMessage::ContentIsSigned(PRBool *isSigned)
 {
   nsNSSShutDownPreventionLock locker;
   if (isAlreadyShutDown())
     return NS_ERROR_NOT_AVAILABLE;
 
   PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("nsCMSMessage::ContentIsSigned\n"));
   NS_ENSURE_ARG(isSigned);
 
@@ -466,17 +466,17 @@ public:
         }
       }
     }
 
     if (mPoolp)
       PORT_FreeArena(mPoolp, PR_FALSE);
   }
 
-  bool allocate(PRUint32 count)
+  PRBool allocate(PRUint32 count)
   {
     // only allow allocation once
     if (mPoolp)
       return PR_FALSE;
   
     mSize = count;
 
     if (!mSize)
@@ -742,17 +742,17 @@ NS_IMETHODIMP nsCMSMessage::CreateSigned
     if (NSS_CMSSignerInfo_AddMSSMIMEEncKeyPrefs(signerinfo, ecert, 
 	                                    CERT_GetDefaultCertDB())
 	  != SECSuccess) {
       PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("nsCMSMessage::CreateSigned - can't add MS smime enc key prefs\n"));
       goto loser;
     }
 
     // If signing and encryption cert are identical, don't add it twice.
-    bool addEncryptionCert =
+    PRBool addEncryptionCert =
       (ecert && (!scert || !CERT_CompareCerts(ecert, scert)));
 
     if (addEncryptionCert &&
         NSS_CMSSignedData_AddCertificate(sigd, ecert) != SECSuccess) {
       PR_LOG(gPIPNSSLog, PR_LOG_DEBUG, ("nsCMSMessage::CreateSigned - can't add own encryption certificate\n"));
       goto loser;
     }
   }